The Ring,piston, cataloged under National Stock Number 3040-01-407-7975, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 3040-01-407-7975 |
| Primary Part Number | ASA-17435-1 |
| Item Name | Ring,piston |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ASA-17435-1 PRIMARY | Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent (USA) |
| 65651-11388-113 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 87205 PRIMARY | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
NSN 3040-01-407-7975 is a Ring,piston, manufactured by Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-407-7975 has 3 manufacturer part numbers on file: ASA-17435-1 (Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent), 65651-11388-113 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 87205 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).
1 possible match (shared part number, not a government interchangeability claim): 6230-01-606-3340. Verify interchangeability with system specifications before substitution.
Key specifications for ASA-17435-1: End Item Identification: CH53E ACFT. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.