The Spacer,stepped, cataloged under National Stock Number 5365-00-097-4401, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hartwell Corporation. Government technical data includes 10 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 | 5365-00-097-4401 |
| Primary Part Number | H539-4 |
| Item Name | Spacer,stepped |
| FSC / FSG | 5365 / 53 — No Item Name Available |
| Manufacturer | Hartwell Corporation |
| Status | ACTIVE |
| Style Designator | STEPPED SPACER |
| Second Right Step Outside Diameter | 0.309 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE |
| Second Right Step Width | 0.250 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| First Left Counterbore Inside Diameter | 0.375 INCHES MAXIMUM IN |
| Body Inside Diameter | 0.259 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.438 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE |
| Second Left Counterbore Inside Diameter | 0.349 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5365-00-097-4401 is a Spacer,stepped, manufactured by Hartwell Corporation, classified under FSC 5365 (No Item Name Available). Status: active.
NSN 5365-00-097-4401 has 2 cross-referenced part numbers: H539-4 (Hartwell Corporation), 532543-3 (Raytheon Company Dba Raytheon).
There is 1 known substitute for 5365-00-097-4401: 2530-00-383-9885. Verify interchangeability with system specifications before substitution.
Key specifications for H539-4: Style Designator: STEPPED SPACER; Second Right Step Outside Diameter: 0.309 INCHES MAXIMUM IN; Surface Treatment: PASSIVATE; Overall Length: 0.807 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN. 11 total characteristics are documented in the Federal Logistics Information System.