Ring, Piston3040-01-004-9107

NSN 3040-01-004-9107 · NIIN 010049107 · Part number 72331

Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 09790

Government record, cited

NSN 3040-01-004-9107 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-004-9107. Manufacturer of record part number: 72331.

Also searched as 3040-01-004-9107 · 3040010049107 · NIIN 010049107 · 01-004-9107 · FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 09790 · 72331 · ACC10921

Nearby stock numbers ← 3040-01-004-8466 Collar Assembly, Clutch · 3040-01-004-9158 Collar, Shaft →

Features

Ring,piston — FSC 3040
2 manufacturer part numbers on file
Manufacturer of record: Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator

Identification

NSN: 3040-01-004-9107
NIIN: 010049107
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 72331
Manufacturer: Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator

General Description

The Ring,piston, cataloged under National Stock Number 3040-01-004-9107, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Ring,piston
FSC / FSG	3040 — Miscellaneous Power Transmission Equipment (FSG 30)
Manufacturers	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (CAGE 09790); Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent (CAGE 71687)

Technical Specifications

Parameter	Value
NSN	3040-01-004-9107
Primary Part Number	72331
Item Name	Ring,piston
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

⇄ Related Items 2

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5910-01-050-56947233-1 POSSIBLE MATCH

CAPACITOR,FIXED,ELECTROLYTIC

Possible match (shared part number)A. T. Parker, Inc. Div Solar Electronics Company

5330-01-367-9761 POSSIBLE MATCH

GASKET

Possible match (shared part number)

Cross-Reference Index

Part Number	Manufacturer
72331 PRIMARY	Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)
ACC10921 PRIMARY	Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent (USA)

Related Parts

5910-01-050-5694POSSIBLE MATCH

CAPACITOR,FIXED,ELECTROLYTIC

7233-1

5330-01-367-9761POSSIBLE MATCH

GASKET

Frequently Asked Questions

What is NSN 3040-01-004-9107?

NSN 3040-01-004-9107 is a Ring,piston, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What part numbers are listed for NSN 3040-01-004-9107?

NSN 3040-01-004-9107 has 2 manufacturer part numbers on file: 72331 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), ACC10921 (Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent).

What NSN replaces 3040-01-004-9107?

2 possible matches (shared part number, not a government interchangeability claim): 5910-01-050-5694, 5330-01-367-9761. Verify interchangeability with system specifications before substitution.

Is NSN 3040-01-004-9107 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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