The Seal Ring,metal, cataloged under National Stock Number 5330-00-385-9057, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-385-9057 |
| Primary Part Number | 4012272 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| FSC Application Data | GAS TURBINE AND JET ENGINE,ACFT COMPONENTS |
| Surface Treatment Document and Classification | AMS 2406 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 7310 C 1 ASSN STD 1ST MATERIAL RESPONSE AND AMS 7311 C 1 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | DOUBLE INSIDE BEVEL, BEVELED FACE SCRAPER, BOTTOM RELIEF |
| Joint Style | STEP JOINT |
| Inside Diameter | 4.253 INCHES MINIMUM AND 4.263 INCHES MAXIMUM IN |
| Radial Wall Thickness | 0.1130 INCHES MINIMUM AND 0.1230 INCHES MAXIMUM IN |
| Ring Style | CONTRACTING CONCENTRIC |
| Surface Treatment | CHROMIUM OVERALL |
| Material | IRON 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 |
|---|---|
| 4012272 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4012272 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 4012272 | Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent (USA) |
| 4012272 | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
| Reference | Meaning |
|---|---|
| 4012272 | 5/9 Secondary reference Norton Canada Inc |
| 4012272E | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 5330PL0660615 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4012272 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 4012272 | 5/9 Secondary reference American Tubular Elevator Co |
| 81346-00 | 5/9 Secondary reference Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
NSN 5330-00-385-9057 is a Seal Ring,metal, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-385-9057 has 4 manufacturer part numbers on file: 4012272 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4012272 (Rtx Corporation Div Pratt & Whitney), 4012272 (Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent), 4012272 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).
1 possible match (shared part number, not a government interchangeability claim): 2940-01-174-1283. Verify interchangeability with system specifications before substitution.
Key specifications for 4012272: FSC Application Data: GAS TURBINE AND JET ENGINE,ACFT COMPONENTS; Surface Treatment Document and Classification: AMS 2406 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Overall Width: 0.1020 INCHES MINIMUM AND 0.1040 INCHES MAXIMUM IN; Material Document and Classification: AMS 7310 C 1 ASSN STD 1ST MATERIAL RESPONSE AND AMS 7311 C 1 ASSN STD 2ND MATERIAL RESPONSE OVERALL. 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.