The Washer,shouldered, cataloged under National Stock Number 5310-01-138-5516, 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 | 5310-01-138-5516 |
| Primary Part Number | 7954539-1 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES SHOULDER FACE |
| Surface Finish | 63.0 MICROINCHES TOP |
| Shoulder Height | 0.064 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | ASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A108 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A108 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 5TH MATERIAL RESPONSE OR ASTM A513 ASSN STD 5TH MATERIAL RESPONSE OR ASTM A519 ASSN STD 5TH MATERIAL RESPONSE OR ASTM A513 ASSN STD 6TH MATERIAL RESPONSE OR ASTM A513 ASSN STD 7TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 8TH MATERIAL RESPONSE OR ASTM A512 ASSN STD 8TH MATERIAL RESPONSE OR ASTM A513 ASSN STD 8TH MATERIAL RESPONSE OR ASTM A519 ASSN STD 8TH MATERIAL RESPONSE OR ASTM A513 ASSN STD 9TH MATERIAL RESPONSE OR ASTM A519 ASSN STD 9TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 10TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 11TH MATERIAL RESPONSE OVERALL |
| Outside Diameter | 4.219 INCHES NOMINAL IN |
| Material Thickness | 0.087 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN |
| Shoulder Diameter | 3.484 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN |
| Material | STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1117 OR STEEL COMP 1118 OVERALL |
| Hole Diameter | 2.755 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 7954539-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-138-5516 is a Washer,shouldered, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-138-5516 has 1 manufacturer part number on file: 7954539-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7954539-1: Surface Finish: 63.0 MICROINCHES SHOULDER FACE; Surface Finish: 63.0 MICROINCHES TOP; Shoulder Height: 0.064 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN; Style Designator: SHOULDERED. 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.