PartsTable TECHNICAL DATA SHEET
NSN 2990-00-004-8310Government record, cited

Pipe, Exhaust2990-00-004-8310

NSN 2990-00-004-8310 · NIIN 000048310 · Part number 42388
Walker Mfg Co · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 79260
Government record, cited
NSN 2990-00-004-8310 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-004-8310. Manufacturer of record part number: 42388.
Also searched as  2990-00-004-8310 · 2990000048310 · NIIN 000048310 · 00-004-8310 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 79260 · 42388 · C7TZ-5267-C · C7TZ-5267-C
Nearby stock numbers  ·
Features
  • Pipe,exhaust — FSC 2990
  • Furnished Items and Quantity: 1 FLANGE
  • Design Form: STRAIGHT
  • Nominal Overall Length: 24.000 INCHES IN
  • Wall Thickness: 0.0620 INCHES NOMINAL IN
  • Nominal Outside Diameter: 2.125 INCHES IN
  • Material: STEEL
  • 1 manufacturer part number on file
Identification
  • NSN: 2990-00-004-8310
  • NIIN: 000048310
  • FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
  • FSG: 29 — Engine Accessories
  • Primary part number: 42388
  • Manufacturer: Walker Mfg Co
General Description

The Pipe,exhaust, cataloged under National Stock Number 2990-00-004-8310, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Walker Mfg Co. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-00-004-8310
Primary Part Number42388
Item NamePipe,exhaust
FSC / FSG2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
ManufacturerWalker Mfg Co
StatusACTIVE
Furnished Items and Quantity1 FLANGE
Design FormSTRAIGHT
Nominal Overall Length24.000 INCHES IN
Wall Thickness0.0620 INCHES NOMINAL IN
Nominal Outside Diameter2.125 INCHES IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5950-00-087-6106 POSSIBLE MATCH
TRANSFORMER,POWER
Possible match (shared part number)
5962-01-089-279742388 POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
Possible match (shared part number)Raytheon Company Div Rmd Strategic
5120-01-114-09464238-8 POSSIBLE MATCH
TANG BREAKOFF TOOL,SCREW THREAD
Possible match (shared part number)Stanley Engineered Fastening Llc
5330-01-552-81404238-8 POSSIBLE MATCH
PACKING,PREFORMED
Possible match (shared part number)Coffin Turbo Pump Inc
6645-01-582-668842388 POSSIBLE MATCH
METER,TIME TOTALIZING
Possible match (shared part number)Westerbeke Corporation
1005-01-633-014142388 POSSIBLE MATCH
SWAB,SMALL ARMS CLEANING
Possible match (shared part number)Outers Guncare
Cross-Reference Index
Part NumberManufacturer
42388 PRIMARY Walker Mfg Co (USA)
Reference documents
ReferenceMeaning
C7TZ-5267-C 5/9 Secondary reference
Ford Motor Co Ford Parts and Service Div Government Part Sales
C7TZ-5267-C C/1 Advisory reference — outside the item-of-supply concept
Ford Motor Company
Related Parts
5950-00-087-6106POSSIBLE MATCH
TRANSFORMER,POWER
5962-01-089-2797POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
42388
5120-01-114-0946POSSIBLE MATCH
TANG BREAKOFF TOOL,SCREW THREAD
4238-8
5330-01-552-8140POSSIBLE MATCH
PACKING,PREFORMED
4238-8
6645-01-582-6688POSSIBLE MATCH
METER,TIME TOTALIZING
42388
1005-01-633-0141POSSIBLE MATCH
SWAB,SMALL ARMS CLEANING
42388

Frequently Asked Questions

What is NSN 2990-00-004-8310?

NSN 2990-00-004-8310 is a Pipe,exhaust, manufactured by Walker Mfg Co, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-00-004-8310?

NSN 2990-00-004-8310 has 1 manufacturer part number on file: 42388 (Walker Mfg Co).

What NSN replaces 2990-00-004-8310?

6 possible matches (shared part number, not a government interchangeability claim): 5950-00-087-6106, 5962-01-089-2797, 5120-01-114-0946. Verify interchangeability with system specifications before substitution.

What are the specifications of 42388?

Key specifications for 42388: Furnished Items and Quantity: 1 FLANGE; Design Form: STRAIGHT; Nominal Overall Length: 24.000 INCHES IN; Wall Thickness: 0.0620 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 2990-00-004-8310 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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