NSN 2990-01-248-3857 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-248-3857. Manufacturer of record part number: TS8325M.
Manufacturer: Trw Inc Trw Intl Trade Government Sales Dept
General Description
The Ring Set,piston, cataloged under National Stock Number 2990-01-248-3857, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Trw Inc Trw Intl Trade Government Sales Dept. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Trw Inc Trw Intl Trade Government Sales Dept (USA)
No interchangeability data on file.
Other items in FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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MUFFLER,EXHAUST
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BLOCK,ADJUSTING SCREW
2990-00-903-8226
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2990-01-151-5443
CONNECTOR,EXHAUST PIPE
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CONNECTOR,EXHAUST PIPE
Frequently Asked Questions
What is NSN 2990-01-248-3857?
NSN 2990-01-248-3857 is a Ring Set,piston, manufactured by Trw Inc Trw Intl Trade Government Sales Dept, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
What part numbers are listed for NSN 2990-01-248-3857?
NSN 2990-01-248-3857 has 1 manufacturer part number on file: TS8325M (Trw Inc Trw Intl Trade Government Sales Dept).
What are the specifications of TS8325M?
Key specifications for TS8325M: Piston Accommodation Quantity: 1; End Item Identification: TRW INC BUICK,OLDSMOBILE,PONTIAC 1977 TO 1981,8 CYLINDER ENGINE 301,350L; CHEVROLET 1962 TO 1982,8 CYLINDER ENGINE 302,327,350. 1 specification is documented in the U.S. Government catalog.
Is NSN 2990-01-248-3857 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.