The Gasket, cataloged under National Stock Number 5330-01-128-7085, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Mentis Sciences Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-128-7085 |
| Primary Part Number | 1240-36539 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Mentis Sciences Inc |
| Status | ACTIVE |
| Temp Rating | 300.0 FAHRENHEIT DEGF |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Gage Ring Thickness | 0.139 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Maximum Pressure Rating | 50.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Material Document and Classification | MIL-R-83248 TY 1 CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Elongation Percentage | 125 MAXIMUM |
| Bolt Hole Quantity | 1 |
| Surface Treatment | ANODIZE OVERALL |
| Material | RUBBER FLUOROCARBON CLASS FPM OVERALL |
| Hole Diameter | 0.194 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| 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 |
|---|---|
| 1240-36539 PRIMARY | Mentis Sciences Inc (USA) |
| Reference | Meaning |
|---|---|
| 36539 | 7/2 Vendor item drawing reference Williams International Co., L.l.c. |
| 36539 | 3/2 Design control — primary reference U.S. Government activity |
| 798333-A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-128-7085 is a Gasket, manufactured by Mentis Sciences Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-128-7085 has 1 manufacturer part number on file: 1240-36539 (Mentis Sciences Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5120-01-434-3460, 5930-01-649-5770. Verify interchangeability with system specifications before substitution.
Key specifications for 1240-36539: Temp Rating: 300.0 FAHRENHEIT DEGF; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Gage Ring Thickness: 0.139 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Maximum Pressure Rating: 50.0 POUNDS PER SQUARE INCH (PSI) LBS. 10 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.