Connector, Exhaust Pipe2990-01-173-8668

NSN 2990-01-173-8668 · NIIN 011738668 · Part number 4-104-8-00059

Grove U.s. Llc Dba Grove Us Llc · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 12361

Government record, cited

NSN 2990-01-173-8668 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-173-8668. Manufacturer of record part number: 4-104-8-00059.

Also searched as 2990-01-173-8668 · 2990011738668 · NIIN 011738668 · 01-173-8668 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 12361 · 4-104-8-00059 · B4-104-8-00059

Nearby stock numbers ← 2990-01-173-8453 · 2990-01-173-8692 →

Features

Connector,exhaust Pipe — FSC 2990
Nominal Overall Length: 6.000 INCHES IN
2 manufacturer part numbers on file
Manufacturer of record: Grove U.s. Llc Dba Grove Us Llc

Identification

NSN: 2990-01-173-8668
NIIN: 011738668
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 4-104-8-00059
Manufacturer: Grove U.s. Llc Dba Grove Us Llc

General Description

The Connector,exhaust Pipe, cataloged under National Stock Number 2990-01-173-8668, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Grove U.s. Llc Dba Grove Us Llc. Government technical data includes 1 specification, 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	2990-01-173-8668
Primary Part Number	4-104-8-00059
Item Name	Connector,exhaust Pipe
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Grove U.s. Llc Dba Grove Us Llc
Status	ACTIVE
Nominal Overall Length	6.000 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
4-104-8-00059 PRIMARY	Grove U.s. Llc Dba Grove Us Llc (USA)
B4-104-8-00059	Grove U.s. Llc Dba Grove Us Llc (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 2990-01-173-8668?

NSN 2990-01-173-8668 is a Connector,exhaust Pipe, manufactured by Grove U.s. Llc Dba Grove Us Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-173-8668?

NSN 2990-01-173-8668 has 2 manufacturer part numbers on file: 4-104-8-00059 (Grove U.s. Llc Dba Grove Us Llc), B4-104-8-00059 (Grove U.s. Llc Dba Grove Us Llc).

What are the specifications of 4-104-8-00059?

Key specifications for 4-104-8-00059: Nominal Overall Length: 6.000 INCHES IN; Special Features: 3.500 IN. OD, IST END THD EXTERNALLY, 3.000 IN.-NPT THD SIZE, 2ND END CUT AT 45.0 DEG ANGLE. 3.000 IN. ID. MATERIAL PER SAE 1015 OR 1026 IN; End Item Identification: 3810-01-144-4885. 1 specification is documented in the U.S. Government catalog.

Is NSN 2990-01-173-8668 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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