The Washer,shouldered, cataloged under National Stock Number 5310-01-142-5348, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-142-5348 |
| Primary Part Number | 143688 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1. MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Height | 0.040 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | ASTM A582,CL 303,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.453 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN |
| Material Thickness | 0.069 INCHES NOMINAL IN |
| Shoulder Diameter | 0.250 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.154 INCHES MINIMUM AND 0.162 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 |
|---|---|
| 143688 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2885128 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5310-01-142-5348 is a Washer,shouldered, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-142-5348 has 1 manufacturer part number on file: 143688 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-363-2313. Verify interchangeability with system specifications before substitution.
Key specifications for 143688: Surface Treatment Document and Classification: MIL-STD-171,FINISH NO. 5.4.1. MIL STD SINGLE TREATMENT RESPONSE OVERALL; Shoulder Height: 0.040 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN; Style Designator: SHOULDERED; Material Document and Classification: ASTM A582,CL 303,COND A ASSN STD 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.