PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70334Muffler,exhaust

Hoffman/new Yorker Inc · NSN 2990-01-197-3971 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-01-197-3971 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-197-3971. Primary manufacturer part number: 70334.
Features
  • Muffler,exhaust — FSC 2990
  • 4 verified cross-references
  • Primary manufacturer: Hoffman/new Yorker Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-01-197-3971, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Hoffman/new Yorker Inc. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-01-197-3971
Primary Part Number70334
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerHoffman/new Yorker Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6250-00-265-6520 INTERCHANGEABLE
Lampholder
5342-00-483-664870334 INTERCHANGEABLE
Ring Snap,appl 40
Hamilton Sundstrand Corporation Dba Collins Aerospace
4320-01-023-236322253 INTERCHANGEABLE
Impeller,pump,centrifugal
Excell Technologies International Corporation Dba Exceltec
6520-01-235-609870334 INTERCHANGEABLE
Cement,dental
Premier Dental Products Company
1730-01-334-8381 INTERCHANGEABLE
Gate,aircraft Ground Servicing
4820-01-370-2984N70334 INTERCHANGEABLE
Diaphragm,valve,flat
Leslie Controls, Inc. Dba Leslie Controls Inc
6625-01-523-2655 INTERCHANGEABLE
Meter,field Strength
5330-01-547-9728119-2193 INTERCHANGEABLE
Seal,nonmetallic Round Section
Caterpillar Inc Div Caterpillar Defense
1005-01-554-3051FH556-212A INTERCHANGEABLE
Suppressor,flash
Surefire, Llc Dba Surefire Llc
Cross-Reference Index
Part NumberManufacturer
70334 Hoffman/new Yorker, Inc. (USA)
AP-656 Hoffman/new Yorker Inc (USA)
AP-656 Hoffman/new Yorker, Inc. (USA)
70334 PRIMARY Hoffman/new Yorker Inc (USA)
Related Parts
6250-00-265-6520INTERCHANGEABLE
LAMPHOLDER
5342-00-483-6648INTERCHANGEABLE
RING SNAP,APPL 40
70334
4320-01-023-2363INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
22253
6520-01-235-6098INTERCHANGEABLE
CEMENT,DENTAL
70334
1730-01-334-8381INTERCHANGEABLE
GATE,AIRCRAFT GROUND SERVICING
4820-01-370-2984INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
N70334
6625-01-523-2655INTERCHANGEABLE
METER,FIELD STRENGTH
5330-01-547-9728INTERCHANGEABLE
SEAL,NONMETALLIC ROUND SECTION
119-2193
1005-01-554-3051INTERCHANGEABLE
SUPPRESSOR,FLASH
FH556-212A

Frequently Asked Questions

What is NSN 2990-01-197-3971?

NSN 2990-01-197-3971 is a Muffler,exhaust, manufactured by Hoffman/new Yorker Inc, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-01-197-3971?

NSN 2990-01-197-3971 has 4 cross-referenced part numbers: 70334 (Hoffman/new Yorker, Inc.), AP-656 (Hoffman/new Yorker Inc), AP-656 (Hoffman/new Yorker, Inc.), 70334 (Hoffman/new Yorker Inc).

What NSN replaces 2990-01-197-3971?

There are 9 known substitutes for 2990-01-197-3971: 6250-00-265-6520, 5342-00-483-6648, 4320-01-023-2363 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 70334?

Key specifications for 70334: End Item Identification: NEW YORK PRESSING HOFFMAN MODELS DRY CLEANING PRESSES. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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