The Washer,flat, cataloged under National Stock Number 5310-00-521-2974, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-521-2974 |
| Primary Part Number | 88133 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Material Document and Classification | MIL-T-6736,TY 1,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Material | STEEL COMP 4130 OVERALL |
| Peripheral Shape Style | ROUND |
| Hole Diameter | 0.459 INCHES NOMINAL IN |
| Center Hole Shape Style | ROUND |
| Surface Treatment | CADMIUM OVERALL |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Thickness | 0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Heat Treatment | NORMALIZED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 88133 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5310-00-521-2974 is a Washer,flat, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-521-2974 has 1 cross-referenced part number: 88133 (Northrop Grumman Systems Corporation).
There are 3 known substitutes for 5310-00-521-2974: 6210-00-056-9193, 5315-00-963-2056, 3110-01-258-0826. Verify interchangeability with system specifications before substitution.
Key specifications for 88133: Material Document and Classification: MIL-T-6736,TY 1,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL COMP 4130 OVERALL; Peripheral Shape Style: ROUND. 10 total characteristics are documented in the Federal Logistics Information System.