The Washer,key, cataloged under National Stock Number 5310-01-187-7972, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Goodrich Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-187-7972 |
| Primary Part Number | 1881-271 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Style Designator | KEY |
| Surface Finish | 125.0 MICROINCHES ALL SURFACES |
| Surface Treatment | PRIMER AND ENAMEL OVERALL |
| Material Document and Classification | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP 302 OVERALL |
| Surface Treatment Document and Classification | MIL-P-23377 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-C-83286 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| External Key Quantity | 2 |
| Hole Diameter | 1.531 INCHES MINIMUM AND 1.533 INCHES MAXIMUM IN |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| External Straight Key Width | 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Color | WHITE OVERALL |
| Overall Distance Including Keys | 2.470 INCHES MINIMUM AND 2.480 INCHES MAXIMUM IN |
| Material Thickness | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-01-187-7972 is a Washer,key, manufactured by Goodrich Corporation, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-01-187-7972 has 2 cross-referenced part numbers: 1881-271 (Goodrich Corporation Div Advanced Structures Landing Systems), 1881-271 (Goodrich Corporation).
There is 1 known substitute for 5310-01-187-7972: 5935-00-456-0661. Verify interchangeability with system specifications before substitution.
Key specifications for 1881-271: Style Designator: KEY; Surface Finish: 125.0 MICROINCHES ALL SURFACES; Surface Treatment: PRIMER AND ENAMEL OVERALL; Material Document and Classification: MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.