Cap Assembly2990-01-266-3904

NSN 2990-01-266-3904 · NIIN 012663904 · Part number 12345669

U S Army Tank Automotive Command Amsta-Im-Mm · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 19207

Government record, cited

NSN 2990-01-266-3904 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-266-3904. Manufacturer of record part number: 12345669.

Also searched as 2990-01-266-3904 · 2990012663904 · NIIN 012663904 · 01-266-3904 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 19207 · 12345669

Nearby stock numbers ← 2990-01-266-3678 Amplifier, Vacuum, Emission Contro · 2990-01-266-5220 Vacuum Line Assy →

Features

Cap Assembly — FSC 2990
General Characteristics Item Description: CONSISTS OF CAGE 19207 P/N 12345 669;1 PLATE,CAGE 19207 P/N 12345669-1;1 COVER,CAGE 19207 P/N 12345669-2;1 R ING,CAGE 19207 P/N 12345669-6;1 TUBE,CAGE 19207 P/N 12345669-4;4 GOSSETS CAGE 19207 P/N 12345669-3;1 SCREEN,CAGE 19207 P/N 12345669-5;PLATE,MATLSTEEL 1015 TO 1025 ASTM-A576 0.25 IN. THK;CO VER,MATLSTEEL ASTM-A569 0.08 IN. THK; RING,MATLSTEEL ASTM-A569 0.08 IN. THK;TUBE,MATLSTEEL MT1020 TO MTX1020 ASTM A519,2.75 IN. O.D. X 0.15 WALL THK;GUSSET,MATLSTEEL ASTM-A569 OR ASTM-A366,0.11 IN. THK;SCREEN,MATLMESH WIRE CLOTHSTAINLESS STEEL RR- W-360,8.00 BY 8.00IN.,0.32 DIA;OVERALL ASSEMBLY LG 3.03 IN. IN
1 manufacturer part number on file
Manufacturer of record: U S Army Tank Automotive Command Amsta-Im-Mm

Identification

NSN: 2990-01-266-3904
NIIN: 012663904
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 12345669
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm

General Description

The Cap Assembly, cataloged under National Stock Number 2990-01-266-3904, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. 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.

Technical Specifications

Parameter	Value
NSN	2990-01-266-3904
Primary Part Number	12345669
Item Name	Cap Assembly
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	U S Army Tank Automotive Command Amsta-Im-Mm
Status	ACTIVE
General Characteristics Item Description	CONSISTS OF CAGE 19207 P/N 12345 669;1 PLATE,CAGE 19207 P/N 12345669-1;1 COVER,CAGE 19207 P/N 12345669-2;1 R ING,CAGE 19207 P/N 12345669-6;1 TUBE,CAGE 19207 P/N 12345669-4;4 GOSSETS CAGE 19207 P/N 12345669-3;1 SCREEN,CAGE 19207 P/N 12345669-5;PLATE,MATLSTEEL 1015 TO 1025 ASTM-A576 0.25 IN. THK;CO VER,MATLSTEEL ASTM-A569 0.08 IN. THK; RING,MATLSTEEL ASTM-A569 0.08 IN. THK;TUBE,MATLSTEEL MT1020 TO MTX1020 ASTM A519,2.75 IN. O.D. X 0.15 WALL THK;GUSSET,MATLSTEEL ASTM-A569 OR ASTM-A366,0.11 IN. THK;SCREEN,MATLMESH WIRE CLOTHSTAINLESS STEEL RR- W-360,8.00 BY 8.00IN.,0.32 DIA;OVERALL ASSEMBLY LG 3.03 IN. 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
12345669 PRIMARY	U S Army Tank Automotive Command Amsta-Im-Mm (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 2990-01-266-3904?

NSN 2990-01-266-3904 is a Cap Assembly, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-266-3904?

NSN 2990-01-266-3904 has 1 manufacturer part number on file: 12345669 (U S Army Tank Automotive Command Amsta-Im-Mm).

What are the specifications of 12345669?

Key specifications for 12345669: General Characteristics Item Description: CONSISTS OF CAGE 19207 P/N 12345 669;1 PLATE,CAGE 19207 P/N 12345669-1;1 COVER,CAGE 19207 P/N 12345669-2;1 R ING,CAGE 19207 P/N 12345669-6;1 TUBE,CAGE 19207 P/N 12345669-4;4 GOSSETS CAGE 19207 P/N 12345669-3;1 SCREEN,CAGE 19207 P/N 12345669-5;PLATE,MATLSTEEL 1015 TO 1025 ASTM-A576 0.25 IN. THK;CO VER,MATLSTEEL ASTM-A569 0.08 IN. THK; RING,MATLSTEEL ASTM-A569 0.08 IN. THK;TUBE,MATLSTEEL MT1020 TO MTX1020 ASTM A519,2.75 IN. O.D. X 0.15 WALL THK;GUSSET,MATLSTEEL ASTM-A569 OR ASTM-A366,0.11 IN. THK;SCREEN,MATLMESH WIRE CLOTHSTAINLESS STEEL RR- W-360,8.00 BY 8.00IN.,0.32 DIA;OVERALL ASSEMBLY LG 3.03 IN. IN; End Item Identification: M1 COMBAT TNK NSN 23500106124. 1 specification is documented in the U.S. Government catalog.

Is NSN 2990-01-266-3904 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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