The Washer,spring Tension, cataloged under National Stock Number 5310-00-443-2978, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 5 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-443-2978 |
| Primary Part Number | 345-9 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Material Thickness | 0.012 INCHES NOMINAL IN |
| Material | BERYLLIUM OVERALL |
| Hole Diameter | 0.126 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-00-443-2978 is a Washer,spring Tension, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-443-2978 has 3 cross-referenced part numbers: 345-9 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), 345-9 (Honeywell Intl Inc Defense Avionics Systems), QAP00207 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
There are 6 known substitutes for 5310-00-443-2978: 2040-00-385-8772, 5365-00-826-9762, 5999-00-827-1987 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 345-9: Material Thickness: 0.012 INCHES NOMINAL IN; Overall Height: 0.025 INCHES NOMINAL IN; Material: BERYLLIUM OVERALL; Hole Diameter: 0.126 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.