The Pin,grooved,headed, cataloged under National Stock Number 5315-01-278-4053, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-278-4053 |
| Primary Part Number | 5496981-1 |
| Item Name | Pin,grooved,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Undercut Width | 0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN |
| Undercut Diameter | 0.464 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | WS19168 CAGEC 38597 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Under Head Length | 1.137 INCHES NOMINAL IN |
| First End Style | SQUARE |
| Style Designator | GROOVE |
| Pin Head Diameter | 0.620 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.497 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN |
| Effective Length | 1.025 INCHES NOMINAL IN |
| Head Style | FLAT |
| Second Undercut Width | 0.030 INCHES NOMINAL IN |
| Height | 0.050 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Second Undercut Diameter | 0.430 INCHES NOMINAL IN |
| Material | STEEL COMP 630 OVERALL |
| 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 |
|---|---|
| 5496981-1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5496981-2 | 5/9 Secondary reference Naval Sea Systems Command |
| 5496981-2 | 5/9 Secondary reference Western Industrial Machining, Inc. Dba Western Industrial Machining Inc |
| 5496981-1 | 5/9 Secondary reference Lockheed Martin Corporation Div Rotary and Mission Systems |
NSN 5315-01-278-4053 is a Pin,grooved,headed, manufactured by Naval Sea Systems Command, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-278-4053 has 1 manufacturer part number on file: 5496981-1 (Naval Sea Systems Command).
Key specifications for 5496981-1: Undercut Width: 0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN; Undercut Diameter: 0.464 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN; Surface Treatment Document and Classification: WS19168 CAGEC 38597 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Under Head Length: 1.137 INCHES NOMINAL IN. 16 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.