The Washer,seal, cataloged under National Stock Number 5310-01-583-3972, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 7 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 | 5310-01-583-3972 |
| Primary Part Number | 12509511 |
| Item Name | Washer,seal |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Supplementary Features | NHA-12509272 |
| Hardness Rating | 60.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM70.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | ASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 38.1 MILLIMETERS NOMINAL38.1 MILLIMETERS NOMINAL MM |
| Material Thickness | 2.4 MILLIMETERS NOMINAL2.4 MILLIMETERS NOMINAL MM |
| Material | RUBBER SYNTHETIC OVERALL |
| Hole Diameter | 19.1 MILLIMETERS NOMINAL19.1 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 12509511 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-583-3972 is a Washer,seal, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-583-3972 has 1 manufacturer part number on file: 12509511 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12509511: Overall Height: 2.4 MILLIMETERS NOMINAL2.4 MILLIMETERS NOMINAL MM; Supplementary Features: NHA-12509272; Hardness Rating: 60.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM70.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: ASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 7 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.