PartsTable TECHNICAL DATA SHEET

NSN 2990-01-421-5256Government record, cited

Pipe, Exhaust2990-01-421-5256

NSN 2990-01-421-5256 · NIIN 014215256 · Part number 02039-0061

Harlan Global Manufacturing Llc · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 60905

Government record, cited

NSN 2990-01-421-5256 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-421-5256. Manufacturer of record part number: 02039-0061.

Also searched as 2990-01-421-5256 · 2990014215256 · NIIN 014215256 · 01-421-5256 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 60905 · 02039-0061 · Q697928

Nearby stock numbers ← 2990-01-421-5239 Flange, Exhaust Pipe · 2990-01-421-8157 Pipe, Exhaust →

Features

Pipe,exhaust — FSC 2990
Design Form: STRAIGHT
Nominal Overall Length: 11.750 INCHES IN
Enlarged End Inside Diameter: 2.525 INCHES NOMINAL IN
Wall Thickness: 1.7500 INCHES NOMINAL IN
Nominal Outside Diameter: 2.500 INCHES IN
Material: STEEL
2 manufacturer part numbers on file

Identification

NSN: 2990-01-421-5256
NIIN: 014215256
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 02039-0061
Manufacturer: Harlan Global Manufacturing Llc

General Description

The Pipe,exhaust, cataloged under National Stock Number 2990-01-421-5256, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Harlan Global Manufacturing Llc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2990-01-421-5256
Primary Part Number	02039-0061
Item Name	Pipe,exhaust
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Harlan Global Manufacturing Llc
Status	ACTIVE
Design Form	STRAIGHT
Nominal Overall Length	11.750 INCHES IN
Enlarged End Inside Diameter	2.525 INCHES NOMINAL IN
Wall Thickness	1.7500 INCHES NOMINAL IN
Nominal Outside Diameter	2.500 INCHES IN
Material	STEEL

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
02039-0061 PRIMARY	Harlan Global Manufacturing Llc (USA)
Q697928	Cummins Filtration Inc. (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.

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 2990-01-421-5256?

NSN 2990-01-421-5256 is a Pipe,exhaust, manufactured by Harlan Global Manufacturing Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-421-5256?

NSN 2990-01-421-5256 has 2 manufacturer part numbers on file: 02039-0061 (Harlan Global Manufacturing Llc), Q697928 (Cummins Filtration Inc.).

What are the specifications of 02039-0061?

Key specifications for 02039-0061: Design Form: STRAIGHT; Nominal Overall Length: 11.750 INCHES IN; Enlarged End Inside Diameter: 2.525 INCHES NOMINAL IN; Wall Thickness: 1.7500 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-421-5256 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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