The Pin,grooved,headed, cataloged under National Stock Number 5315-01-481-0991, 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 14 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 | 5315-01-481-0991 |
| Primary Part Number | 122-5277655 ITEM 12 |
| Item Name | Pin,grooved,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Undercut Width | 0.060 INCHES NOMINAL IN |
| First End Taper Length | 0.060 INCHES NOMINAL IN |
| Undercut Diameter | 1.128 INCHES MINIMUM AND 1.129 INCHES MAXIMUM IN |
| Under Head Length | 6.100 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Style Designator | GROOVE |
| Pin Head Diameter | 1.750 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-1222, GR B-16 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 1.248 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Effective Length | 2.820 INCHES NOMINAL IN |
| Head Style | FLAT |
| Height | 0.380 INCHES NOMINAL IN |
| Material | STEEL 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 |
|---|---|
| 122-5277655 ITEM 12 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5315-01-481-0991 is a Pin,grooved,headed, manufactured by Naval Sea Systems Command, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-481-0991 has 1 manufacturer part number on file: 122-5277655 ITEM 12 (Naval Sea Systems Command).
Key specifications for 122-5277655 ITEM 12: Undercut Width: 0.060 INCHES NOMINAL IN; First End Taper Length: 0.060 INCHES NOMINAL IN; Undercut Diameter: 1.128 INCHES MINIMUM AND 1.129 INCHES MAXIMUM IN; Under Head Length: 6.100 INCHES NOMINAL IN. 14 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.