The Packing Assembly, cataloged under National Stock Number 5330-01-121-0407, 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 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-121-0407 |
| Primary Part Number | ST7M254-024-2 |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Intermediate Ring Quantity | 1 |
| Outside Diameter | 1.263 INCHES NOMINAL IN |
| Material Document and Classification | MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE INTERMEDIATE RING |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR BOTTOM RING |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR TOP RING |
| Cross-Sectional Shape Style | SPECIAL INTERMEDIATE RING |
| Inside Diameter | 1.123 INCHES NOMINAL IN |
| Height | 0.141 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR INTERMEDIATE RING |
| 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 |
|---|---|
| ST7M254-024-2 PRIMARY | The Boeing Company Div Defense (USA) |
| 7024MS-160-T PRIMARY | Greene Tweed & Co Inc (USA) |
| S38421-024BAK1 | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10119686 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 7024MS160-T | 5/9 Secondary reference Greene Tweed and Co Advantec Div |
| 7024MS160-T | 5/9 Secondary reference Palmetto Inc |
NSN 5330-01-121-0407 is a Packing Assembly, manufactured by The Boeing Company Div Defense, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-121-0407 has 3 manufacturer part numbers on file: ST7M254-024-2 (The Boeing Company Div Defense), 7024MS-160-T (Greene Tweed & Co Inc), S38421-024BAK1 (Trelleborg Sealing Solutions Us, Inc.).
Key specifications for ST7M254-024-2: Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Intermediate Ring Quantity: 1; Outside Diameter: 1.263 INCHES NOMINAL IN; Material Document and Classification: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE INTERMEDIATE RING. 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.