The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-00-285-9101, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 11 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. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-285-9101 |
| Primary Part Number | 13163 |
| Item Name | Washer,shouldered and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| Shoulder Height | 0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| Style Designator | SHOULDERED AND RECESSED |
| Material Document and Classification | AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.840 INCHES MINIMUM AND 0.850 INCHES MAXIMUM IN |
| Material Thickness | 0.120 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.565 INCHES MINIMUM AND 0.571 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE FILM OVERALL |
| Material | STEEL COMP 416F OVERALL |
| Hole Diameter | 0.505 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN |
| Recess Angle | 120.0 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 |
|---|---|
| 13163 PRIMARY | Triumph Engine Control Systems Llc (USA) |
NSN 5310-00-285-9101 is a Washer,shouldered and Recessed, manufactured by Triumph Engine Control Systems Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-285-9101 has 1 manufacturer part number on file: 13163 (Triumph Engine Control Systems Llc).
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-044-8320, 5330-01-180-4809, 5977-01-238-5491. Verify interchangeability with system specifications before substitution.
Key specifications for 13163: Shoulder Height: 0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM; Style Designator: SHOULDERED AND RECESSED; Material Document and Classification: AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 11 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.