The Seal, cataloged under National Stock Number 5330-01-237-6976, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-237-6976 |
| Primary Part Number | GS18B-1-0155 |
| Item Name | Seal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL NEOPRENE RUBBER,MIL-R-6855 CLASS 2 GRADE 40 |
| 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 |
|---|---|
| GS18B-1-0155 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 123W10086-17 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 123BM10376-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 123W10086-17 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 5330-01-237-6976 is a Seal, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-237-6976 has 1 manufacturer part number on file: GS18B-1-0155 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-266-4139. Verify interchangeability with system specifications before substitution.
Key specifications for GS18B-1-0155: General Characteristics Item Description: MATERIAL NEOPRENE RUBBER,MIL-R-6855 CLASS 2 GRADE 40. 1 specification is 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.