PartsTable TECHNICAL DATA SHEET

NSN 2990-01-063-0071Government record, cited

Ring Set, Piston2990-01-063-0071

NSN 2990-01-063-0071 · NIIN 010630071 · Part number S30071-334-99PH

Trelleborg Sealing Solutions Us, Inc. · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 09257

Government record, cited

NSN 2990-01-063-0071 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-063-0071. Manufacturer of record part number: S30071-334-99PH.

Also searched as 2990-01-063-0071 · 2990010630071 · NIIN 010630071 · 01-063-0071 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 09257 · S30071-334-99PH

Nearby stock numbers ← 2990-01-062-7076 Pump Assembly, Oil · 2990-01-063-0712 →

Features

Ring Set,piston — FSC 2990
Piston Accommodation Quantity: 1
Standard Bore Diameter: 2.995 INCHES IN
1 manufacturer part number on file
Manufacturer of record: Trelleborg Sealing Solutions Us, Inc.

Identification

NSN: 2990-01-063-0071
NIIN: 010630071
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: S30071-334-99PH
Manufacturer: Trelleborg Sealing Solutions Us, Inc.

General Description

The Ring Set,piston, cataloged under National Stock Number 2990-01-063-0071, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2990-01-063-0071
Primary Part Number	S30071-334-99PH
Item Name	Ring Set,piston
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Trelleborg Sealing Solutions Us, Inc.
Status	ACTIVE
Piston Accommodation Quantity	1
Standard Bore Diameter	2.995 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

Cross-Reference Index

Part Number	Manufacturer
S30071-334-99PH PRIMARY	Trelleborg Sealing Solutions Us, Inc. (USA)

Reference documents

Reference	Meaning
S30071-334-99PH	5/9 Secondary reference U.S. Government activity

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.

2990-00-001-0001

BLOWER ASSEMBLY

2990-00-001-1248

2990-00-001-1248 · Item name not on file

2990-00-001-1250

2990-00-001-1250 · Item name not on file

2990-00-001-2055

2990-00-001-2055 · Item name not on file

2990-00-001-3498

2990-00-001-3498 · Item name not on file

2990-00-001-3520

2990-00-001-3520 · Item name not on file

2990-00-001-3521

2990-00-001-3521 · Item name not on file

2990-00-001-3522

CAP ASSEMBLY,MUFFLE

Frequently Asked Questions

What is NSN 2990-01-063-0071?

NSN 2990-01-063-0071 is a Ring Set,piston, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-063-0071?

NSN 2990-01-063-0071 has 1 manufacturer part number on file: S30071-334-99PH (Trelleborg Sealing Solutions Us, Inc.).

What are the specifications of S30071-334-99PH?

Key specifications for S30071-334-99PH: Piston Accommodation Quantity: 1; Special Features: RING MATERIAL,POLYTETRAFLUOROETHYLENE,EXPANDER MATERIAL,STAINLESS STEEL; Standard Bore Diameter: 2.995 INCHES IN. 2 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-063-0071 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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