AT1-1921 — MUFFLER,EXHAUST

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

AT1-1921: MUFFLER,EXHAUST.

The MUFFLER,EXHAUST is a the manufacturer industrial component. Key specifications include material: STEEL LOCATION NOT OTHERWISE SPECIFIED, design_type: DRY, thread_size: 3/8-16 SINGLE INLET FLANGE MOUNTING PROVISION, coolant_type: AIR, overall_width: 8.000 INCHES NOMINAL IN, inlet_location: LOCATED ON PERIPHERY OF BODY,1.875 IN. FROM END IN.

This part is cataloged in the U.S. Government catalog under NSN 2990-00-056-4628, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

AT1-1921

NSN: 2990-00-056-4628
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
CAGE: 80672 — ALEXANDER TAGG INDUSTRIES INC (USA)

SPECIFICATIONS

material	STEEL LOCATION NOT OTHERWISE SPECIFIED
design_type	DRY
thread_size	3/8-16 SINGLE INLET FLANGE MOUNTING PROVISION
coolant_type	AIR
overall_width	8.000 INCHES NOMINAL IN
tube_quantity	2
inlet_location	LOCATED ON PERIPHERY OF BODY,1.875 IN. FROM END IN
overall_height	5.125 INCHES NOMINAL IN
overall_length	8.125 INCHES NOMINAL IN
outlet_location	LOCATED ON PERIPHERY ON OPPOSITE SIDE FROM INLET 1.750 IN. FROM END OPPOSITE INLET IN
surface_treatment	CHROMATE
operating_position	HORIZONTAL
NSN	2990-00-056-4628

COMPONENT DIAGRAM

KEY FEATURES

•

OPERATING POSITION: HORIZONTAL

•

INLET LOCATION: LOCATED ON PERIPHERY OF BODY,1.875 IN. FROM END IN

•

COOLANT TYPE: AIR

•

DESIGN TYPE: DRY

•

CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES: 2-11/16 IN. C TO C DIM. OF MTG HOLES SINGLE INLET IN

•

OUTLET INSIDE DIAMETER: 1.500 INCHES NOMINAL FIRST OUTLET IN

TECHNICAL CHARACTERISTICS

OPERATING POSITION	HORIZONTAL
OVERALL HEIGHT	5.125 INCHES NOMINAL IN
INLET LOCATION	LOCATED ON PERIPHERY OF BODY,1.875 IN. FROM END IN
COOLANT TYPE	AIR
DESIGN TYPE	DRY
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES	2-11/16 IN. C TO C DIM. OF MTG HOLES SINGLE INLET IN
OUTLET INSIDE DIAMETER	1.500 INCHES NOMINAL FIRST OUTLET IN
OVERALL LENGTH	8.125 INCHES NOMINAL IN
OVERALL WIDTH	8.000 INCHES NOMINAL IN
OUTLET OUTSIDE DIAMETER	1.635 INCHES NOMINAL FIRST OUTLET IN

SUBSTITUTES & CROSS-REFERENCES 5

0109-0248Reference document

Same NSN cross-reference

Reference document — Secondary reference

1921Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

13211E4870-109-0248Reference document

Same NSN cross-reference

Reference document — Secondary reference

13211E4870Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

A-44850Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is AT1-1921?

AT1-1921 is a MUFFLER,EXHAUST.

What parts can replace AT1-1921?

There are 5 known substitutes for AT1-1921: 0109-0248, 1921, 13211E4870-109-0248 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for AT1-1921?

AT1-1921 is cataloged in the U.S. Government catalog under NSN 2990-00-056-4628. This indicates validated use in U.S. government and defense supply chains.

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AT1-1921 — MUFFLER,EXHAUST

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