PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

478Insulator,feedthru

Birnbach Co Inc · NSN 5970-00-284-8078 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-284-8078 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-284-8078. Primary manufacturer part number: 478.
Features
  • Insulator,feedthru — FSC 5970
  • Center Stud Length: 2.500 INCHES NOMINAL IN
  • Top Diameter: 0.559 INCHES NOMINAL IN
  • Thread Length and Location: 2.500 CENTER STUD INCHES NOMINAL
  • Screw Thread Diameter and Location: 0.190 CENTER STUD INCHES NOMINAL
  • Screw Thread Series Designator and Location: CENTER STUD UNF
  • Thread Class and Location: 2A CENTER STUD A
  • Height Above Mounting Surface: 1.000 INCHES NOMINAL IN
Applications
  • Applications requiring Porcelain Overall construction
General Description

The Insulator,feedthru, cataloged under National Stock Number 5970-00-284-8078, is classified within Federal Supply Class 5970 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Birnbach Co Inc. Government technical data includes 16 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: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-284-8078
Primary Part Number478
Item NameInsulator,feedthru
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerBirnbach Co Inc
StatusCANCELLED
Center Stud Length2.500 INCHES NOMINAL IN
Top Diameter0.559 INCHES NOMINAL IN
Thread Length and Location2.500 CENTER STUD INCHES NOMINAL
Screw Thread Diameter and Location0.190 CENTER STUD INCHES NOMINAL
Screw Thread Series Designator and LocationCENTER STUD UNF
Thread Class and Location2A CENTER STUD A
Height Above Mounting Surface1.000 INCHES NOMINAL IN
Screw Thread Quantity Per Inch and Location32 CENTER STUD
Shank Height0.375 INCHES NOMINAL IN
Mounting Facility Type and Quantity1 THREADED STUD(S)
Shank Outside Diameter0.416 INCHES NOMINAL IN
Style DesignatorDOUBLE, BOWL
Surface Treatment and LocationOVERALL GLAZED
MaterialPORCELAIN OVERALL
Outside Diameter0.812 INCHES NOMINAL IN
Identification Code ColorWHITE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-100-0255121550 INTERCHANGEABLE
Cone and Rollers,tapered Roller
General Motors Llc Dba General Motors Llc
5120-00-236-7621 INTERCHANGEABLE
Socket,socket Wrench
4820-00-287-4234578-2.5 INTERCHANGEABLE
Valve,check
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
7510-00-472-3268 INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
2530-00-478-5792F59012 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
6625-00-833-6507478 INTERCHANGEABLE
Voltmeter
Q V S Inc
6625-00-898-8950 INTERCHANGEABLE
Capacitor,decade
5330-00-923-472547-8 INTERCHANGEABLE
Packing,preformed
Carter Controls a Figgie Intl Co
5365-01-086-5240478 INTERCHANGEABLE
Bushing
Detroit Stoker Company
4820-01-121-25502843 INTERCHANGEABLE
Lift Nut
Lawler Manufacturing Company, Inc.
Cross-Reference Index
Part NumberManufacturer
478 PRIMARY Birnbach Co Inc (USA)
GT800AW1 Northrop Grumman Systems Corporation (USA)
Related Parts
3110-00-100-0255INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
121550
5120-00-236-7621INTERCHANGEABLE
SOCKET,SOCKET WRENCH
4820-00-287-4234INTERCHANGEABLE
VALVE,CHECK
578-2.5
7510-00-472-3268INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
2530-00-478-5792INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
F59012
6625-00-833-6507INTERCHANGEABLE
VOLTMETER
478
6625-00-898-8950INTERCHANGEABLE
CAPACITOR,DECADE
5330-00-923-4725INTERCHANGEABLE
PACKING,PREFORMED
47-8
5365-01-086-5240INTERCHANGEABLE
BUSHING
478
4820-01-121-2550INTERCHANGEABLE
LIFT NUT
2843
5910-01-171-5501INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
0461504780
5330-01-295-5546INTERCHANGEABLE
GASKET
45.0069

Frequently Asked Questions

What is NSN 5970-00-284-8078?

NSN 5970-00-284-8078 is a Insulator,feedthru, manufactured by Birnbach Co Inc, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-284-8078?

NSN 5970-00-284-8078 has 2 cross-referenced part numbers: 478 (Birnbach Co Inc), GT800AW1 (Northrop Grumman Systems Corporation).

What NSN replaces 5970-00-284-8078?

There are 12 known substitutes for 5970-00-284-8078: 3110-00-100-0255, 5120-00-236-7621, 4820-00-287-4234 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 478?

Key specifications for 478: Center Stud Length: 2.500 INCHES NOMINAL IN; Top Diameter: 0.559 INCHES NOMINAL IN; Thread Length and Location: 2.500 CENTER STUD INCHES NOMINAL; Screw Thread Diameter and Location: 0.190 CENTER STUD INCHES NOMINAL. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-284-8078 still in active supply?

NSN 5970-00-284-8078 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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