The Pin,straight,headless, cataloged under National Stock Number 5315-01-122-0571, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-122-0571 |
| Primary Part Number | 196B7770-2 |
| Item Name | Pin,straight,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| Surface Finish | 250.0 MICROINCHES OVERALL |
| First End Taper Length | 0.020 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | DOD-P-16232,TY M CL 1 MIL SPEC 1ST TREATMENT RESPONSE OR DOD-P-16232,TY Z CL 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Hole Arrangement Style | BOTH END DRILLED |
| First End Style | CHAMFERED |
| First Hole Diameter | 0.189 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | ASTM A322 ASSN STD 1ST MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Pin Overall Diameter | 0.4340 INCHES MINIMUM AND 0.4360 INCHES MAXIMUM IN |
| Pin Overall Length | 3.210 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN |
| Second End Relationship with First End | IDENTICAL |
| Second Hole Diameter | 0.189 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Center to Center Distance Between Holes | 1.530 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE MANGANESE OR PHOSPHATE ZINC OVERALL |
| Material | STEEL COMP 4140 OVERALL |
| Distance From Centerline of Hole to End of Pin | 1.260 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 196B7770-2 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
| Reference | Meaning |
|---|---|
| 10122936 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5315-01-122-0571 is a Pin,straight,headless, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-122-0571 has 1 manufacturer part number on file: 196B7770-2 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 196B7770-2: Surface Finish: 250.0 MICROINCHES OVERALL; First End Taper Length: 0.020 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Surface Treatment Document and Classification: DOD-P-16232,TY M CL 1 MIL SPEC 1ST TREATMENT RESPONSE OR DOD-P-16232,TY Z CL 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Hole Arrangement Style: BOTH END DRILLED. 17 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.