NSN 5845-00-656-6946 · NIIN 006566946 · Part number 56-404
Triumph Thermal Systems - Maryland, Inc. · FSC 5845 — Underwater Sound Equipment · FSG 58 — Communication, Detection, and Coherent Radiation Equipment · CAGE 01359
Government record, cited
NSN 5845-00-656-6946 — this item is cataloged by the U.S. Government under National Stock Number 5845-00-656-6946. Manufacturer of record part number: 56-404.
Manufacturer of record: Triumph Thermal Systems - Maryland, Inc.
Identification
NSN: 5845-00-656-6946
NIIN: 006566946
FSC: 5845 — Underwater Sound Equipment
FSG: 58 — Communication, Detection, and Coherent Radiation Equipment
Primary part number: 56-404
Manufacturer: Triumph Thermal Systems - Maryland, Inc.
General Description
The Screw,adjustment, cataloged under National Stock Number 5845-00-656-6946, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Screw,adjustment
FSC / FSG
5845 — Underwater Sound Equipment (FSG 58)
Manufacturers
Triumph Thermal Systems - Maryland, Inc. (CAGE 01359)
Technical Specifications
Parameter
Value
NSN
5845-00-656-6946
Primary Part Number
56-404
Item Name
Screw,adjustment
FSC / FSG
5845 / 58 — Underwater Sound Equipment
Manufacturer
Triumph Thermal Systems - Maryland, Inc.
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
1650-00-956-989956404POSSIBLE MATCH
HEAD,HYDRAULIC MOTOR-PUMP
Possible match (shared part number)Parker Hannifin Corporation Div Hydraulic Systems Division
5315-01-398-8644P235A078-1POSSIBLE MATCH
PIN,QUICK RELEASE
Possible match (shared part number)Telephonics Corp
3040-01-560-6892135704POSSIBLE MATCH
BRAKE DRUM
Possible match (shared part number)Lake Shore Systems, Inc.
NSN 5845-00-656-6946 is a Screw,adjustment, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 5845, Underwater Sound Equipment. Status: active.
What part numbers are listed for NSN 5845-00-656-6946?
NSN 5845-00-656-6946 has 1 manufacturer part number on file: 56-404 (Triumph Thermal Systems - Maryland, Inc.).
What NSN replaces 5845-00-656-6946?
3 possible matches (shared part number, not a government interchangeability claim): 1650-00-956-9899, 5315-01-398-8644, 3040-01-560-6892. Verify interchangeability with system specifications before substitution.
Is NSN 5845-00-656-6946 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.