The Packing Assembly, cataloged under National Stock Number 5330-01-117-3489, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Greene Tweed & Co Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-117-3489 |
| Primary Part Number | 7429MT-987-T |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Greene Tweed & Co Inc |
| Status | ACTIVE |
| Temp Rating | -70.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Intermediate Ring Quantity | 1 |
| Outside Diameter | 5.474 INCHES MINIMUM AND 5.477 INCHES MAXIMUM IN |
| Material Document and Classification | 987 FSCM 72902 MFR REF 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 | 4.994 INCHES MINIMUM AND 4.997 INCHES MAXIMUM IN |
| Height | 0.579 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 |
|---|---|
| 7429MT-987-T PRIMARY | Greene Tweed & Co Inc (USA) |
| 6412-6429 | Kidde-Fenwal, Llc (USA) |
| Reference | Meaning |
|---|---|
| 7429MT-987-TFN1 | C/1 Advisory reference — outside the item-of-supply concept Greene Tweed & Co Inc |
| 6412-6429 | 7/2 Vendor item drawing reference U.S. Government activity |
| 10119649 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 7429MT987T | 5/9 Secondary reference Palmetto Inc |
| 262422 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5330-01-117-3489 is a Packing Assembly, manufactured by Greene Tweed & Co Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-117-3489 has 2 manufacturer part numbers on file: 7429MT-987-T (Greene Tweed & Co Inc), 6412-6429 (Kidde-Fenwal, Llc).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-668-0495. Verify interchangeability with system specifications before substitution.
Key specifications for 7429MT-987-T: Temp Rating: -70.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Intermediate Ring Quantity: 1; Outside Diameter: 5.474 INCHES MINIMUM AND 5.477 INCHES MAXIMUM IN; Material Document and Classification: 987 FSCM 72902 MFR REF 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.