The Seal,nonmetallic Round Section, cataloged under National Stock Number 5330-01-589-9637, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Robertson Fuel Systems, L.l.c.. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-589-9637 |
| Primary Part Number | HM045-022-1 |
| Item Name | Seal,nonmetallic Round Section |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Robertson Fuel Systems, L.l.c. |
| Status | ACTIVE |
| Style Designator | CIRCULAR |
| Material Document and Classification | ASTM D6576, TYPE 2, GRADE C SILICONE SPONGE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | CIRCULAR |
| Aperture Diameter | 6.800 INCHES NOMINAL IN |
| Cross Section Outside Diameter | 7.640 INCHES MINIMUM AND 7.760 INCHES MAXIMUM IN |
| Material | SILICONE OVERALL |
| Construction | SOLID |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12535674 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| HM045-022-1 PRIMARY | Robertson Fuel Systems, L.l.c. (USA) |
NSN 5330-01-589-9637 is a Seal,nonmetallic Round Section, manufactured by Robertson Fuel Systems, L.l.c., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-589-9637 has 2 manufacturer part numbers on file: 12535674 (U S Army Tank Automotive Command Amsta-Im-Mm), HM045-022-1 (Robertson Fuel Systems, L.l.c.).
Key specifications for HM045-022-1: Style Designator: CIRCULAR; Material Document and Classification: ASTM D6576, TYPE 2, GRADE C SILICONE SPONGE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: CIRCULAR; Aperture Diameter: 6.800 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.