The Washer,recessed, cataloged under National Stock Number 5310-00-678-2983, 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 10 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 | 5310-00-678-2983 |
| Primary Part Number | 8754391 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Heat Treatment | QUENCHED AND TEMPERED |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.550 INCHES MINIMUM AND 1.570 INCHES MAXIMUM IN |
| Material Thickness | 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Recess Diameter | 1.170 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN |
| Material | STEEL COMP 1040 OVERALL |
| Hole Diameter | 1.003 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN |
| Recess Angle | 90.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 8754391 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-00-678-2983 is a Washer,recessed, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-678-2983 has 1 manufacturer part number on file: 8754391 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8754391: Heat Treatment: QUENCHED AND TEMPERED; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM; Style Designator: RECESSED; Material Document and Classification: QQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 10 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.