PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40007Reducing Washer,knockout

Mulberry Metal Products Inc · NSN 5975-00-265-7774 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-265-7774 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-265-7774. Primary manufacturer part number: 40007.
Features
  • Reducing Washer,knockout — FSC 5975
  • Knockout Size for Which Designed: 1.000 INCHES NOMINAL IN
  • Material: STEEL
  • Conduit Size Accommodated: 0.750 INCHES NOMINAL IN
  • Outside Diameter: 1.625 INCHES NOMINAL IN
  • Design Type: FLAT
  • 22 verified cross-references
  • Primary manufacturer: Mulberry Metal Products Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel construction
General Description

The Reducing Washer,knockout, cataloged under National Stock Number 5975-00-265-7774, is classified within Federal Supply Class 5975 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Mulberry Metal Products Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 22 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5975-00-265-7774
Primary Part Number40007
Item NameReducing Washer,knockout
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerMulberry Metal Products Inc
StatusCANCELLED
Knockout Size for Which Designed1.000 INCHES NOMINAL IN
MaterialSTEEL
Conduit Size Accommodated0.750 INCHES NOMINAL IN
Outside Diameter1.625 INCHES NOMINAL IN
Design TypeFLAT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6625-00-001-4452 INTERCHANGEABLE
Test Set,audio
4930-00-073-049348571 INTERCHANGEABLE
Valve Reed,air Elim
Liquid Controls, L.l.c. Div Idex Corporation
5905-00-109-0967D225K20K INTERCHANGEABLE
Resistor,adjustable
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
3110-00-159-9239SSR4RA3P15L02 INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Precision Division
5136-00-228-1014 INTERCHANGEABLE
Tap,thread Cutting
5315-00-244-3913106A INTERCHANGEABLE
Pin,grooved,headed
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
3455-00-250-0770 INTERCHANGEABLE
Cutter,milling,end
3445-00-263-2955 INTERCHANGEABLE
Punching Machine,metal,hand
5975-00-265-77731368 INTERCHANGEABLE
Reducing Washer,knockout
Raco, a Division of Hubbell Incorporated(delaware)
6750-00-292-9666 INTERCHANGEABLE
Film,photographic
Cross-Reference Index
Part NumberManufacturer
RW4S Egs Electric Co Llc (USA)
R4 Mulberry Metal Products Inc (USA)
RW1007 Egs Electrical Group Appleton Div (USA)
1452-B Atlas Technologies Inc (USA)
40007 PRIMARY Mulberry Metal Products Inc (USA)
59115D27-41 Air Products & Chemicals, Inc (USA)
RW505 Neer Mfg Co Inc (USA)
1063 Bridgeport Fittings Inc (USA)
RW100-75 Egs Electrical Group Appleton Div (USA)
RW121 M&w Electric Manufacturing Co. Llc (USA)
7337 Egs Electrical Group Appleton Div (USA)
RW4 Egs Electric Co Llc (USA)
033726-0002 Thales Usa, Inc. Div Air Mobility Solutions ("ams") (USA)
13402 Atlas Technologies Inc (USA)
0007 Mulberry Metal Products Inc (USA)
R0007 Mulberry Metal Products Inc (USA)
RW4 General Signal Corp O Z/gedney Co Unit (USA)
59115D27-41C Air Products & Chemicals, Inc (USA)
302 Efcor Inc
344 Midwest Electric Mfg Corp Sub of Crouse-Hinds Co (USA)
Related Parts
6625-00-001-4452INTERCHANGEABLE
TEST SET,AUDIO
4930-00-073-0493INTERCHANGEABLE
VALVE REED,AIR ELIM
48571
5905-00-109-0967INTERCHANGEABLE
RESISTOR,ADJUSTABLE
D225K20K
3110-00-159-9239INTERCHANGEABLE
BEARING,BALL,ANNULAR
SSR4RA3P15L02
5136-00-228-1014INTERCHANGEABLE
TAP,THREAD CUTTING
5315-00-244-3913INTERCHANGEABLE
PIN,GROOVED,HEADED
106A
3455-00-250-0770INTERCHANGEABLE
CUTTER,MILLING,END
3445-00-263-2955INTERCHANGEABLE
PUNCHING MACHINE,METAL,HAND
5975-00-265-7773INTERCHANGEABLE
REDUCING WASHER,KNOCKOUT
1368
6750-00-292-9666INTERCHANGEABLE
FILM,PHOTOGRAPHIC
2590-00-294-1410INTERCHANGEABLE
CAP,FILLER OPENING
16605
2825-00-379-3569INTERCHANGEABLE
WHEEL,TURBINE,BLADE
400-07

Frequently Asked Questions

What is NSN 5975-00-265-7774?

NSN 5975-00-265-7774 is a Reducing Washer,knockout, manufactured by Mulberry Metal Products Inc, classified under FSC 5975 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5975-00-265-7774?

NSN 5975-00-265-7774 has 22 cross-referenced part numbers: RW4S (Egs Electric Co Llc), R4 (Mulberry Metal Products Inc), RW1007 (Egs Electrical Group Appleton Div), 1452-B (Atlas Technologies Inc), 40007 (Mulberry Metal Products Inc) and 17 more.

What NSN replaces 5975-00-265-7774?

There are 12 known substitutes for 5975-00-265-7774: 6625-00-001-4452, 4930-00-073-0493, 5905-00-109-0967 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40007?

Key specifications for 40007: Knockout Size for Which Designed: 1.000 INCHES NOMINAL IN; Material: STEEL; Conduit Size Accommodated: 0.750 INCHES NOMINAL IN; Outside Diameter: 1.625 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5975-00-265-7774 still in active supply?

NSN 5975-00-265-7774 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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