The Spacer,ring, cataloged under National Stock Number 5365-01-151-8594, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-151-8594 |
| Primary Part Number | 137584 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | ACTIVE |
| Outside Diameter | 4.906 INCHES MINIMUM AND 4.922 INCHES MAXIMUM IN |
| Overall Thickness | 0.218 INCHES MINIMUM AND 0.223 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A473 ASSN STD SINGLE MATERIAL RESPONSE |
| Inside Diameter | 4.125 INCHES MINIMUM AND 4.141 INCHES MAXIMUM IN |
| Material | STEEL COMP 416 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 131791 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 137584 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 057361 ITEM 22 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
NSN 5365-01-151-8594 is a Spacer,ring, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-151-8594 has 3 manufacturer part numbers on file: 131791 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 137584 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), 057361 ITEM 22 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5950-01-373-9838. Verify interchangeability with system specifications before substitution.
Key specifications for 137584: Outside Diameter: 4.906 INCHES MINIMUM AND 4.922 INCHES MAXIMUM IN; Overall Thickness: 0.218 INCHES MINIMUM AND 0.223 INCHES MAXIMUM IN; Material Document and Classification: ASTM A473 ASSN STD SINGLE MATERIAL RESPONSE; Inside Diameter: 4.125 INCHES MINIMUM AND 4.141 INCHES MAXIMUM IN. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.