The Washer,shouldered, cataloged under National Stock Number 5310-01-142-1198, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-142-1198 |
| Primary Part Number | 933C055414L1 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Height | 0.193 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Style Designator | SHOULDERED |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.739 INCHES MINIMUM AND 2.740 INCHES MAXIMUM IN |
| Material Thickness | 0.146 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN |
| Shoulder Diameter | 2.547 INCHES MINIMUM AND 2.550 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303 OVERALL |
| Hole Diameter | 2.250 INCHES MINIMUM AND 2.255 INCHES MAXIMUM IN |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 933C055414L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 55414L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 933C055414 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
| 55414 | 3/1 Design control — primary reference L3 Technologies, Inc. Div L3 Keo |
NSN 5310-01-142-1198 is a Washer,shouldered, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-142-1198 has 2 manufacturer part numbers on file: 933C055414L1 (Naval Inventory Control Point Mechanicsburg), 55414L1 (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 1080-01-541-2373. Verify interchangeability with system specifications before substitution.
Key specifications for 933C055414L1: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Shoulder Height: 0.193 INCHES NOMINAL IN; Criticality Code Justification: ZZZY; Style Designator: SHOULDERED. 12 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.