The Pin,grooved,headless, cataloged under National Stock Number 5315-01-418-8521, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-418-8521 |
| Primary Part Number | 12364591 |
| Item Name | Pin,grooved,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Undercut Width | 0.440 INCHES NOMINAL IN |
| First End Taper Length | 0.500 INCHES NOMINAL IN |
| Undercut Diameter | 1.060 INCHES NOMINAL IN |
| First End Location | COUNTERBORE END |
| First End Counterbore Diameter | 1.500 INCHES NOMINAL IN |
| Hole Arrangement Style | DRILLED THRU HEAD |
| First Hole Diameter | 0.250 INCHES NOMINAL IN |
| Style Designator | GROOVE |
| Material Document and Classification | ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 1.740 INCHES MINIMUM AND 1.745 INCHES MAXIMUM IN |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Effective Length | 5.340 INCHES NOMINAL IN |
| Second End Style | SQUARE |
| Material | STEEL COMP 4820 OR STEEL COMP 8620 OR STEEL COMP 4817 OR STEEL COMP 4620 OVERALL |
| Distance From Centerline of Hole to End of Pin | 0.380 INCHES NOMINAL IN |
| First End Counterbore Depth | 0.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5315-01-418-8521 is a Pin,grooved,headless, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-418-8521 has 3 manufacturer part numbers on file: 12364591 (U S Army Tank Automotive Command Amsta-Im-Mm), 12364591 (Bae Systems Land & Armaments L.p.), 12364591 (Amz Alabama Inc.).
Key specifications for 12364591: Undercut Width: 0.440 INCHES NOMINAL IN; First End Taper Length: 0.500 INCHES NOMINAL IN; Undercut Diameter: 1.060 INCHES NOMINAL IN; First End Location: COUNTERBORE END. 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.