PartsTable TECHNICAL DATA SHEET

NSN 2805-00-376-8425Government record, cited

Ring Set, Piston2805-00-376-8425

NSN 2805-00-376-8425 · NIIN 003768425

FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components · FSG 28 — Engines, Turbines, and Components

Government record, cited

Also searched as 2805-00-376-8425 · 2805003768425 · NIIN 003768425 · 00-376-8425 · FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components · 1325-040 · 905-10 · 13S25-040 · 3862855-144500 · 905-377

Nearby stock numbers ← 2805-00-376-8424 · 2805-00-376-8426 →

Features

Ring Set,piston — FSC 2805
Bore Diameter Oversize: 0.040 INCHES IN
Ring Set Component Parts: COMPRESSION RING,A4D,80756,4; OIL RING,T56,80756,4; SCRAPER RING,R4E,80756,4
Piston Accommodation Quantity: 4
Standard Bore Diameter: 2.500 INCHES IN

Identification

NSN: 2805-00-376-8425
NIIN: 003768425
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
FSG: 28 — Engines, Turbines, and Components

General Description

The Ring Set,piston, cataloged under National Stock Number 2805-00-376-8425, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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	2805-00-376-8425
Item Name	Ring Set,piston
FSC / FSG	2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components
Status	ACTIVE
Bore Diameter Oversize	0.040 INCHES IN
Ring Set Component Parts	COMPRESSION RING,A4D,80756,4; OIL RING,T56,80756,4; SCRAPER RING,R4E,80756,4
Piston Accommodation Quantity	4
Standard Bore Diameter	2.500 INCHES IN

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 8

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

5360-00-526-165290510 POSSIBLE MATCH

SPRING,HELICAL,EXTENSION

Possible match (shared part number)Telemechanics Inc

5950-00-913-1967 POSSIBLE MATCH

COIL,RADIO FREQUENCY

Possible match (shared part number)

6150-01-114-36977060040 POSSIBLE MATCH

LEAD,ELECTRICAL

Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm

5345-01-214-9472 POSSIBLE MATCH

BELT,ABRASIVE

Possible match (shared part number)

4920-01-297-974190510 POSSIBLE MATCH

TEST PROGRAM SET

Possible match (shared part number)Textron Systems Corporation Dba Textron Systems Corp

2815-01-350-2206DN4M-1 POSSIBLE MATCH

ENGINE,DIESEL

Possible match (shared part number)Cummins Power Generation Inc.

6525-01-470-591290510 POSSIBLE MATCH

SHUTTLE PLATE ASSY

Possible match (shared part number)Air Techniques, Inc.

6515-01-542-4545905-00010 POSSIBLE MATCH

CASSETTE,BLOOD-FLUID WARMER SYST

Possible match (shared part number)Belmont Instrument Llc

Cross-Reference Index

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

Reference documents

Reference	Meaning
1325-040	3/2 Design control — primary reference U.S. Government activity
905-10	5/9 Secondary reference Dresser, Llc
13S25-040	5/2 Secondary reference U.S. Government activity
3862855-144500	5/2 Secondary reference U.S. Government activity
905-377	5/9 Secondary reference Dresser, Llc
8821-040	5/9 Secondary reference Dana Corp Engine Products Div
7060-040	C/1 Advisory reference — outside the item-of-supply concept Bosch Automotive Service Solutions Inc.
7060-040	5/9 Secondary reference Spx Corp

Related Parts

5360-00-526-1652POSSIBLE MATCH

SPRING,HELICAL,EXTENSION

90510

5950-00-913-1967POSSIBLE MATCH

COIL,RADIO FREQUENCY

6150-01-114-3697POSSIBLE MATCH

LEAD,ELECTRICAL

7060040

5345-01-214-9472POSSIBLE MATCH

BELT,ABRASIVE

4920-01-297-9741POSSIBLE MATCH

TEST PROGRAM SET

90510

2815-01-350-2206POSSIBLE MATCH

ENGINE,DIESEL

DN4M-1

6525-01-470-5912POSSIBLE MATCH

SHUTTLE PLATE ASSY

90510

6515-01-542-4545POSSIBLE MATCH

CASSETTE,BLOOD-FLUID WARMER SYST

905-00010

Frequently Asked Questions

What is NSN 2805-00-376-8425?

NSN 2805-00-376-8425 is a Ring Set,piston, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.

What NSN replaces 2805-00-376-8425?

8 possible matches (shared part number, not a government interchangeability claim): 5360-00-526-1652, 5950-00-913-1967, 6150-01-114-3697. Verify interchangeability with system specifications before substitution.

What are the specifications of 2805-00-376-8425?

Key specifications for 2805-00-376-8425: Bore Diameter Oversize: 0.040 INCHES IN; Ring Set Component Parts: COMPRESSION RING,A4D,80756,4; OIL RING,T56,80756,4; SCRAPER RING,R4E,80756,4; Piston Accommodation Quantity: 4; Standard Bore Diameter: 2.500 INCHES IN. 4 specifications are documented in the U.S. Government catalog.

Is NSN 2805-00-376-8425 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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