PartsTable TECHNICAL DATA SHEET

NSN 3040-01-083-1915Government record, cited

Ring, Piston3040-01-083-1915

NSN 3040-01-083-1915 · NIIN 010831915

FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment

Government record, cited

Also searched as 3040-01-083-1915 · 3040010831915 · NIIN 010831915 · 01-083-1915 · FSC 3040 Miscellaneous Power Transmission Equipment · 9334-00-0040-407 · 9334-00-0000PC4 · 9334-00-0040 · 9334-00-0000

Nearby stock numbers ← 3040-01-083-1857 · 3040-01-083-2011 Shaft, Shouldered →

Features

Ring,piston — FSC 3040
Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
Joint Style: STEP JOINT
Ring Style: CONCENTRIC
Standard Bore Diameter: 8.500 INCHES IN
Material: PLASTIC PHENOLIC BOTTOM

Identification

NSN: 3040-01-083-1915
NIIN: 010831915
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Ring,piston, cataloged under National Stock Number 3040-01-083-1915, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3040-01-083-1915
Item Name	Ring,piston
FSC / FSG	3040 / 30 — Miscellaneous Power Transmission Equipment
Status	ACTIVE
Cross-Sectional Shape Style	PLAIN RECTANGULAR, STRAIGHT FACE
Joint Style	STEP JOINT
Ring Style	CONCENTRIC
Standard Bore Diameter	8.500 INCHES IN
Material	PLASTIC PHENOLIC BOTTOM

Lifecycle & Compliance

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

⇄ Related Items 9

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

4820-01-092-13889334-01-0760 POSSIBLE MATCH

BODY,PILOT,VALVE

Possible match (shared part number)George W. Dahl Inc.

4820-01-092-31019334-00-0290-500 POSSIBLE MATCH

HANDJACK ASSEMBLY,VALVE

Possible match (shared part number)Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in

4810-01-099-02229334-00-2010 POSSIBLE MATCH

BACK PLATE,VALVE

Possible match (shared part number)Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in

4810-01-262-11399334-01-0750-500 POSSIBLE MATCH

PISTON,VALVE

Possible match (shared part number)Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in

4820-01-437-42979334-00-1010 POSSIBLE MATCH

CAP,VALVE

Possible match (shared part number)Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in

4810-01-528-65729334-00-0030 POSSIBLE MATCH

SEAT,VALVE

Possible match (shared part number)Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in

4810-01-528-65759334000040407 POSSIBLE MATCH

RING,VALVE PISTON

Possible match (shared part number)Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in

5307-01-707-88139333-00-0410 POSSIBLE MATCH

STUD,PLAIN

Possible match (shared part number)George W. Dahl Inc.

5340-01-710-44729333-00-0950 POSSIBLE MATCH

PLATE,MOUNTING

Possible match (shared part number)George W. Dahl Inc.

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
9334-00-0040-407	3/2 Design control — primary reference U.S. Government activity
9334-00-0000PC4	5/9 Secondary reference U.S. Government activity
9334-00-0040	5/9 Secondary reference U.S. Government activity
9334-00-0000	D/9 Drawing number reference only U.S. Government activity

Related Parts

4820-01-092-1388POSSIBLE MATCH

BODY,PILOT,VALVE

9334-01-0760

4820-01-092-3101POSSIBLE MATCH

HANDJACK ASSEMBLY,VALVE

9334-00-0290-500

4810-01-099-0222POSSIBLE MATCH

BACK PLATE,VALVE

9334-00-2010

4810-01-262-1139POSSIBLE MATCH

PISTON,VALVE

9334-01-0750-500

4820-01-437-4297POSSIBLE MATCH

CAP,VALVE

9334-00-1010

4810-01-528-6572POSSIBLE MATCH

SEAT,VALVE

9334-00-0030

4810-01-528-6575POSSIBLE MATCH

RING,VALVE PISTON

9334000040407

5307-01-707-8813POSSIBLE MATCH

STUD,PLAIN

9333-00-0410

5340-01-710-4472POSSIBLE MATCH

PLATE,MOUNTING

9333-00-0950

Frequently Asked Questions

What is NSN 3040-01-083-1915?

NSN 3040-01-083-1915 is a Ring,piston, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What NSN replaces 3040-01-083-1915?

9 possible matches (shared part number, not a government interchangeability claim): 4820-01-092-1388, 4820-01-092-3101, 4810-01-099-0222. Verify interchangeability with system specifications before substitution.

What are the specifications of 3040-01-083-1915?

Key specifications for 3040-01-083-1915: Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Joint Style: STEP JOINT; Ring Style: CONCENTRIC; Standard Bore Diameter: 8.500 INCHES IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 3040-01-083-1915 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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