The Packing,preformed, cataloged under National Stock Number 5330-01-040-7211, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Porter Seal Co. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-040-7211 |
| Primary Part Number | A125TH1217 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Porter Seal Co |
| Status | ACTIVE |
| Temp Rating | -80.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Material Document and Classification | AMS-3304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | O-RING |
| Center Hole Diameter | 1.293 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE CLASS Q 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 |
|---|---|
| A125TH1217 | Porter Seal Co (USA) |
| A125TH1217 | Hutchinson Seal De Mexico Stillman Seal Division Div Stillman Seal,jpr,espa (MEX) |
| Reference | Meaning |
|---|---|
| A125TH1217 | 3/2 Design control — primary reference U.S. Government activity |
| 137618-125ES | 5/9 Secondary reference Eriks B.v. |
NSN 5330-01-040-7211 is a Packing,preformed, manufactured by Porter Seal Co, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-040-7211 has 2 manufacturer part numbers on file: A125TH1217 (Porter Seal Co), A125TH1217 (Hutchinson Seal De Mexico Stillman Seal Division Div Stillman Seal,jpr,espa).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-055-8428. Verify interchangeability with system specifications before substitution.
Key specifications for A125TH1217: Temp Rating: -80.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Material Document and Classification: AMS-3304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: O-RING. 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.