The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-239-3677, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-239-3677 |
| Primary Part Number | UA-9961 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Shank Diameter | 0.310 INCHES NOMINAL IN |
| Second Shank Diameter | 0.375 INCHES NOMINAL IN |
| First End Taper Length | 0.060 INCHES NOMINAL IN |
| First End Location | LONG END |
| First End Style | CHAMFERED |
| Shank Length | 0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN |
| Style Designator | SHOULDER |
| Material Document and Classification | EN 1A,FSCM 61208 MFR REF SINGLE MATERIAL RESPONSE OVERALL A |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Shoulder Diameter | 0.590 INCHES NOMINAL IN |
| Second Shank Length | 0.750 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Second End Style | SQUARE |
| 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 |
|---|---|
| UA-9961 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
NSN 5315-01-239-3677 is a Pin,shoulder,headless, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-239-3677 has 1 manufacturer part number on file: UA-9961 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
Key specifications for UA-9961: Shank Diameter: 0.310 INCHES NOMINAL IN; Second Shank Diameter: 0.375 INCHES NOMINAL IN; First End Taper Length: 0.060 INCHES NOMINAL IN; First End Location: LONG END. 13 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.