All Stainless
Stainless steel bodies are 303 stainless.
Balls are 440 stainless steel.
To prevent possible spring damage, use of a Northwestern Wrench is recommended when installing from plunger end.
The nylon locking element holds the plunger body securely in place without the need for lock nuts or other devices. We recommend a 90 degree countersink 1/32″ larger than the major diameter of the mating thread to prevent damaging the element.
All part numbers that end with a “P” do NOT have a locking element.
#6-40 and smaller have no slot in ball end
| Part # | Projection | Ball Diameter | Body Length | Thread Sizes | End Pressure Start (lbs.) | End Pressure Full (lbs.) | Color Code | Materials | Pressures | Locking Element | Buy | hf:tax:projection | hf:tax:ball_diameter | hf:tax:body_length | hf:tax:thread | hf:tax:end_pressure_lbs_start | hf:tax:end_pressure_lbs_full | hf:tax:color_code | hf:tax:material | hf:tax:pressure | hf:tax:locking_element |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10001 | .020 | .062 | 3/16 | #4-48 | 0.12 | 0.5 | Plain | Stainless Steel | Light | Yes | | 020 | 062 | 3-16 | 4-48 | 0-12 | 0-5 | plain | stainless-steel | light | yes |
| 10001P | .020 | .062 | 3/16 | #4-48 | 0.12 | 0.5 | Plain | Stainless Steel | Light | No | | 020 | 062 | 3-16 | 4-48 | 0-12 | 0-5 | plain | stainless-steel | light | no |
| 10002 | .020 | .062 | 1/4 | #5-40 | 0.25 | 0.75 | Plain | Stainless Steel | Light | Yes | | 020 | 062 | 1-4 | 5-40 | 0-25 | 0-75 | plain | stainless-steel | light | yes |
| 10002P | .020 | .062 | 1/4 | #5-40 | 0.25 | 0.75 | Plain | Stainless Steel | Light | No | | 020 | 062 | 1-4 | 5-40 | 0-25 | 0-75 | plain | stainless-steel | light | no |
| 10003 | .023 | .078 | 5/16 | #6-40 | 0.5 | 1 | Plain | Stainless Steel | Light | Yes | | 023 | 078 | 5-16 | 6-40 | 0-5 | 1 | plain | stainless-steel | light | yes |
| 10003P | .023 | .078 | 5/16 | #6-40 | 0.5 | 1 | Plain | Stainless Steel | Light | No | | 023 | 078 | 5-16 | 6-40 | 0-5 | 1 | plain | stainless-steel | light | no |
| 10004 | .025 | .093 | 11/32 | 8-36 | 0.5 | 1.25 | Plain | Stainless Steel | Light | Yes | | 025 | 093 | 11-32 | 8-36 | 0-5 | 1-25 | plain | stainless-steel | light | yes |
| 10004P | .025 | .093 | 11/32 | 8-36 | 0.5 | 1.25 | Plain | Stainless Steel | Light | No | | 025 | 093 | 11-32 | 8-36 | 0-5 | 1-25 | plain | stainless-steel | light | no |
| 10100 | .025 | .093 | 11/32 | 8-32 | 5 | 1.25 | Plain | Stainless Steel | Light | Yes | | 025 | 093 | 11-32 | 8-32 | 5 | 1-25 | plain | stainless-steel | light | yes |
| 10100P | .025 | .093 | 11/32 | 8-32 | 5 | 1.25 | Plain | Stainless Steel | Light | No | | 025 | 093 | 11-32 | 8-32 | 5 | 1-25 | plain | stainless-steel | light | no |
| 10101 | .025 | .093 | 33/64 | 10-32 | 5 | 1.5 | Plain | Stainless Steel | Light | Yes | | 025 | 093 | 33-64 | 10-32 | 5 | 1-5 | plain | stainless-steel | light | yes |
| 10101P | .025 | .093 | 33/64 | 10-32 | 5 | 1.5 | Plain | Stainless Steel | Light | No | | 025 | 093 | 33-64 | 10-32 | 5 | 1-5 | plain | stainless-steel | light | no |
| 10102 | .025 | .093 | 33/64 | 10-32 | 1.5 | 3 | Black | Stainless Steel | Medium | Yes | | 025 | 093 | 33-64 | 10-32 | 1-5 | 3 | black | stainless-steel | medium | yes |
| 10102P | .025 | .093 | 33/64 | 10-32 | 1.5 | 3 | Black | Stainless Steel | Medium | No | | 025 | 093 | 33-64 | 10-32 | 1-5 | 3 | black | stainless-steel | medium | no |
| 10103 | .025 | .093 | 33/64 | 10-32 | 2 | 5 | Yellow | Stainless Steel | Heavy | Yes | | 025 | 093 | 33-64 | 10-32 | 2 | 5 | yellow | stainless-steel | heavy | yes |
| 10103P | .025 | .093 | 33/64 | 10-32 | 2 | 5 | Yellow | Stainless Steel | Heavy | No | | 025 | 093 | 33-64 | 10-32 | 2 | 5 | yellow | stainless-steel | heavy | no |
| 10104 | .035 | .125 | 17/32 | 1/4-20 | 2 | 4 | Plain | Stainless Steel | Light | Yes | | 035 | 125 | 17-32 | 1-4-20 | 2 | 4 | plain | stainless-steel | light | yes |
| 10104P | .035 | .125 | 17/32 | 1/4-20 | 2 | 4 | Plain | Stainless Steel | Light | No | | 035 | 125 | 17-32 | 1-4-20 | 2 | 4 | plain | stainless-steel | light | no |
| 10105 | .035 | .125 | 17/32 | 1/4-20 | 3 | 7 | Black | Stainless Steel | Medium | Yes | | 035 | 125 | 17-32 | 1-4-20 | 3 | 7 | black | stainless-steel | medium | yes |
| 10105P | .035 | .125 | 17/32 | 1/4-20 | 3 | 7 | Black | Stainless Steel | Medium | No | | 035 | 125 | 17-32 | 1-4-20 | 3 | 7 | black | stainless-steel | medium | no |
| 10106 | .035 | .125 | 17/32 | 1/4-20 | 4 | 12 | Yellow | Stainless Steel | Heavy | Yes | | 035 | 125 | 17-32 | 1-4-20 | 4 | 12 | yellow | stainless-steel | heavy | yes |
| 10106P | .035 | .125 | 17/32 | 1/4-20 | 4 | 12 | Yellow | Stainless Steel | Heavy | No | | 035 | 125 | 17-32 | 1-4-20 | 4 | 12 | yellow | stainless-steel | heavy | no |
| 10107 | .040 | .156 | 37/64 | 5/16-18 | 2 | 4.5 | Plain | Stainless Steel | Light | Yes | | 040 | 156 | 37-64 | 5-16-18 | 2 | 4-5 | plain | stainless-steel | light | yes |
| 10107P | .040 | .156 | 37/64 | 5/16-18 | 2 | 4.5 | Plain | Stainless Steel | Light | No | | 040 | 156 | 37-64 | 5-16-18 | 2 | 4-5 | plain | stainless-steel | light | no |
| 10108 | .040 | .156 | 37/64 | 5/16-18 | 4 | 9 | Black | Stainless Steel | Medium | Yes | | 040 | 156 | 37-64 | 5-16-18 | 4 | 9 | black | stainless-steel | medium | yes |
| 10108P | .040 | .156 | 37/64 | 5/16-18 | 4 | 9 | Black | Stainless Steel | Medium | No | | 040 | 156 | 37-64 | 5-16-18 | 4 | 9 | black | stainless-steel | medium | no |
| 10109 | .040 | .156 | 37/64 | 5/16-18 | 6 | 17 | Yellow | Stainless Steel | Heavy | Yes | | 040 | 156 | 37-64 | 5-16-18 | 6 | 17 | yellow | stainless-steel | heavy | yes |
| 10109P | .040 | .156 | 37/64 | 5/16-18 | 6 | 17 | Yellow | Stainless Steel | Heavy | No | | 040 | 156 | 37-64 | 5-16-18 | 6 | 17 | yellow | stainless-steel | heavy | no |
| 10110 | .048 | .187 | 5/8 | 3/8-16 | 2.5 | 5 | Plain | Stainless Steel | Light | Yes | | 048 | 187 | 5-8 | 3-8-16 | 2-5 | 5 | plain | stainless-steel | light | yes |
| 10110P | .048 | .187 | 5/8 | 3/8-16 | 2.5 | 5 | Plain | Stainless Steel | Light | No | | 048 | 187 | 5-8 | 3-8-16 | 2-5 | 5 | plain | stainless-steel | light | no |
| 10111 | .048 | .187 | 5/8 | 3/8-16 | 5 | 10 | Black | Stainless Steel | Medium | Yes | | 048 | 187 | 5-8 | 3-8-16 | 5 | 10 | black | stainless-steel | medium | yes |
| 10111P | .048 | .187 | 5/8 | 3/8-16 | 5 | 10 | Black | Stainless Steel | Medium | No | | 048 | 187 | 5-8 | 3-8-16 | 5 | 10 | black | stainless-steel | medium | no |
| 10112 | .048 | .187 | 5/8 | 3/8-16 | 6 | 21 | Yellow | Stainless Steel | Heavy | Yes | | 048 | 187 | 5-8 | 3-8-16 | 6 | 21 | yellow | stainless-steel | heavy | yes |
| 10112P | .048 | .187 | 5/8 | 3/8-16 | 6 | 21 | Yellow | Stainless Steel | Heavy | No | | 048 | 187 | 5-8 | 3-8-16 | 6 | 21 | yellow | stainless-steel | heavy | no |
| 10113 | .072 | .281 | 3/4 | 1/2-13 | 3 | 6 | Plain | Stainless Steel | Light | Yes | | 072 | 281 | 3-4 | 1-2-13 | 3 | 6 | plain | stainless-steel | light | yes |
| 10113P | .072 | .281 | 3/4 | 1/2-13 | 3 | 6 | Plain | Stainless Steel | Light | No | | 072 | 281 | 3-4 | 1-2-13 | 3 | 6 | plain | stainless-steel | light | no |
| 10114 | .072 | .281 | 3/4 | 1/2-13 | 6 | 12 | Black | Stainless Steel | Medium | Yes | | 072 | 281 | 3-4 | 1-2-13 | 6 | 12 | black | stainless-steel | medium | yes |
| 10114P | .072 | .281 | 3/4 | 1/2-13 | 6 | 12 | Black | Stainless Steel | Medium | No | | 072 | 281 | 3-4 | 1-2-13 | 6 | 12 | black | stainless-steel | medium | no |
| 10115 | .072 | .281 | 3/4 | 1/2-13 | 6 | 30 | Yellow | Stainless Steel | Heavy | Yes | | 072 | 281 | 3-4 | 1-2-13 | 6 | 30 | yellow | stainless-steel | heavy | yes |
| 10115P | .072 | .281 | 3/4 | 1/2-13 | 6 | 30 | Yellow | Stainless Steel | Heavy | No | | 072 | 281 | 3-4 | 1-2-13 | 6 | 30 | yellow | stainless-steel | heavy | no |
| 10116 | .096 | 0.375 | 63/64 | 5/8-11 | 4.5 | 9 | Plain | Stainless Steel | Light | Yes | | 096 | 0-375 | 63-64 | 5-8-11 | 4-5 | 9 | plain | stainless-steel | light | yes |
| 10116P | .096 | 0.375 | 63/64 | 5/8-11 | 4.5 | 9 | Plain | Stainless Steel | Light | No | | 096 | 0-375 | 63-64 | 5-8-11 | 4-5 | 9 | plain | stainless-steel | light | no |
| 10117 | .096 | 0.375 | 63/64 | 5/8-11 | 9 | 18 | Black | Stainless Steel | Medium | Yes | | 096 | 0-375 | 63-64 | 5-8-11 | 9 | 18 | black | stainless-steel | medium | yes |
| 10117P | .096 | 0.375 | 63/64 | 5/8-11 | 9 | 18 | Black | Stainless Steel | Medium | No | | 096 | 0-375 | 63-64 | 5-8-11 | 9 | 18 | black | stainless-steel | medium | no |
| 10118 | .096 | 0.375 | 63/64 | 5/8-11 | 7 | 50 | Yellow | Stainless Steel | Heavy | Yes | | 096 | 0-375 | 63-64 | 5-8-11 | 7 | 50 | yellow | stainless-steel | heavy | yes |
| 10118P | .096 | 0.375 | 63/64 | 5/8-11 | 7 | 50 | Yellow | Stainless Steel | Heavy | No | | 096 | 0-375 | 63-64 | 5-8-11 | 7 | 50 | yellow | stainless-steel | heavy | no |