The Packing,preformed, cataloged under National Stock Number 5330-01-261-6720, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-261-6720 |
| Primary Part Number | 7M7537-1 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Cross-Sectional Height | 0.176 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 3325 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | TEE |
| Peripheral Diameter | 2.395 INCHES MINIMUM AND 2.411 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.495 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ OVERALL |
| 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 |
|---|---|
| 7M7537-1 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 7M7537-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-01-261-6720 is a Packing,preformed, manufactured by The Boeing Company Div Defense, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-261-6720 has 1 manufacturer part number on file: 7M7537-1 (The Boeing Company Div Defense).
Key specifications for 7M7537-1: Cross-Sectional Height: 0.176 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN; Material Document and Classification: AMS 3325 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: TEE; Peripheral Diameter: 2.395 INCHES MINIMUM AND 2.411 INCHES MAXIMUM IN. 6 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.