The Washer,recessed, cataloged under National Stock Number 5310-00-538-0886, 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 9 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 | 5310-00-538-0886 |
| Primary Part Number | A380886 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Recess Depth | 0.188 INCHES NOMINAL IN |
| Material Thickness | 0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| Recess Diameter | 1.750 INCHES MINIMUM AND 1.753 INCHES MAXIMUM IN |
| Material | STEEL COMP 1020 OVERALL |
| Hole Diameter | 1.374 INCHES MINIMUM AND 1.377 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 |
|---|---|
| A380886 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-00-538-0886 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 5310-00-538-0886 has 1 manufacturer part number on file: A380886 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for A380886: Overall Height: 0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN; Style Designator: RECESSED; Material Document and Classification: QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 2.500 INCHES NOMINAL IN. 9 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.