The Washer,flat, cataloged under National Stock Number 5310-00-103-0631, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-103-0631 |
| Primary Part Number | 637590 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | CANCELLED |
| Thickness | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN |
| Peripheral Shape Style | ROUND |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Diameter | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Material | STEEL COMP 321 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 5310-00-103-0631 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-103-0631 has 3 cross-referenced part numbers: 637590 (Royal Oak Gage, Inc), 637590 (Alinabal Holdings Corporation Div Engineered Products Group), 637590 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
There is 1 known substitute for 5310-00-103-0631: 2530-00-537-0772. Verify interchangeability with system specifications before substitution.
Key specifications for 637590: Thickness: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Material Document and Classification: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Overall Diameter: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-103-0631 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.