PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1956Attenuator,variable

Shallco, Inc · NSN 5985-00-283-5181 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-283-5181 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-283-5181. Primary manufacturer part number: 1956.
Features
  • Attenuator,variable — FSC 5985
  • Overall Diameter: 2.750 INCHES NOMINAL IN
  • Attenuation Per Step in Decibels: 2.0
  • 2 verified cross-references
  • Primary manufacturer: Shallco, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-283-5181, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Shallco, Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-283-5181
Primary Part Number1956
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerShallco, Inc
StatusACTIVE
Overall Diameter2.750 INCHES NOMINAL IN
Attenuation Per Step in Decibels2.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-051-8748325-62-250SH INTERCHANGEABLE
Clamp,hose
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5961-00-079-5766938D392-6 INTERCHANGEABLE
Semiconductor Device,diode
Hamilton Sundstrand Corporation
5330-00-154-11161956 INTERCHANGEABLE
Seal,plain Encased
Eaton Corporation
2990-00-266-9728T-1956 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
5120-00-288-8702 INTERCHANGEABLE
Wrench,open End
2930-00-848-59608496 INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
6520-01-101-1942 INTERCHANGEABLE
Strip,abrasive,dental
5940-01-144-4498P-630 INTERCHANGEABLE
End Section,terminal Block
Time Manufacturing Company Dba Time Manufacturing Company
4330-01-313-08391958 PIECE 1 INTERCHANGEABLE
Filter,fluid
Howell Laboratories Inc Dba Howell Laboratories Inc
5985-01-323-8201 INTERCHANGEABLE
Attenuator,fixed
Cross-Reference Index
Part NumberManufacturer
1956 Shallco, Inc (USA)
P630 Meggitt (new Hampshire), Inc (USA)
Related Parts
4730-00-051-8748INTERCHANGEABLE
CLAMP,HOSE
325-62-250SH
5961-00-079-5766INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
938D392-6
5330-00-154-1116INTERCHANGEABLE
SEAL,PLAIN ENCASED
1956
2990-00-266-9728INTERCHANGEABLE
MUFFLER,EXHAUST
T-1956
5120-00-288-8702INTERCHANGEABLE
WRENCH,OPEN END
2930-00-848-5960INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
8496
6520-01-101-1942INTERCHANGEABLE
STRIP,ABRASIVE,DENTAL
5940-01-144-4498INTERCHANGEABLE
END SECTION,TERMINAL BLOCK
P-630
4330-01-313-0839INTERCHANGEABLE
FILTER,FLUID
1958 PIECE 1
5985-01-323-8201INTERCHANGEABLE
ATTENUATOR,FIXED
5940-01-388-8977INTERCHANGEABLE
TERMINAL,LUG
PWA54026-34
4730-01-409-1229INTERCHANGEABLE
PLUG,PIPE
1956

Frequently Asked Questions

What is NSN 5985-00-283-5181?

NSN 5985-00-283-5181 is a Attenuator,variable, manufactured by Shallco, Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-283-5181?

NSN 5985-00-283-5181 has 2 cross-referenced part numbers: 1956 (Shallco, Inc), P630 (Meggitt (new Hampshire), Inc).

What NSN replaces 5985-00-283-5181?

There are 12 known substitutes for 5985-00-283-5181: 4730-00-051-8748, 5961-00-079-5766, 5330-00-154-1116 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1956?

Key specifications for 1956: Overall Diameter: 2.750 INCHES NOMINAL IN; Attenuation Per Step in Decibels: 2.0; Special Features: SECTION QTY-1,RESISTANCE TOLERANCE-PORM 2 PCT,TERMINAL QTY-3,TERMINAL STYLE-SOLDR LUG,O/A DEPTH-2.062 IN,IMPEDANCE RATING-60 KOHMS,RESISTOR ELEMENT TYPE-WIRE WOUND,MTG CONFIGURATION-TWO NO. 8-32 THD TAPPED HOLES 1.50 IN. C TO C FRONT,FREQ RANGE-0/20 KHZ,TERMINAL LOCATION-SIDE,STEP QTY-29,DECK QTY-1,ATTENUATION RANGE-0 TO INFINITY,OPEN STEP INCLUDED,LAST STEP STYLE-TAPERED,DETENT ACTION PROVIDED KHz. 3 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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