The Washer,flat, cataloged under National Stock Number 5310-00-637-2112, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-637-2112 |
| Primary Part Number | 12376 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Material | STEEL OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Hole Diameter | 0.266 INCHES NOMINAL IN |
| Center Hole Shape Style | ROUND |
| Thickness | 0.057 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN |
| Hardness Rating | 90.7 ROCKWELL B MINIMUM OR 102.0 ROCKWELL B MAXIMUM |
| Peripheral Shape Style | ROUND |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 5310L20-012 | Us Army Aviation and Missile Command (USA) |
| 123476 | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| 12376 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 123476 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5310-00-637-2112 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-637-2112 has 4 cross-referenced part numbers: 5310L20-012 (Us Army Aviation and Missile Command), 123476 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 12376 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 123476 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
There are 12 known substitutes for 5310-00-637-2112: 6920-00-118-5926, 5133-00-228-1407, 4730-00-231-3017 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 12376: Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL; Hole Diameter: 0.266 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.