PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39-46Insulator,bowl

Barker & Williamson · NSN 5970-00-157-0730 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-157-0730 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-157-0730. Primary manufacturer part number: 39-46.
Features
  • Insulator,bowl — FSC 5970
  • Material: STEATITE MOUNTING BASE
  • Top Hole Diameter: 0.156 INCHES NOMINAL IN
  • First Counterbore Depth: 0.250 INCHES NOMINAL IN
  • Surface Treatment and Location: OVERALL GLAZED
  • Height Above Mounting Surface: 0.375 INCHES NOMINAL IN
  • First Counterbore Diameter: 0.375 INCHES NOMINAL IN
  • Style Designator: COUNTERBORE
Applications
  • Applications requiring Steatite Mounting Base construction
General Description

The Insulator,bowl, cataloged under National Stock Number 5970-00-157-0730, 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 Barker & Williamson. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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
NSN5970-00-157-0730
Primary Part Number39-46
Item NameInsulator,bowl
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerBarker & Williamson
StatusACTIVE
MaterialSTEATITE MOUNTING BASE
Top Hole Diameter0.156 INCHES NOMINAL IN
First Counterbore Depth0.250 INCHES NOMINAL IN
Surface Treatment and LocationOVERALL GLAZED
Height Above Mounting Surface0.375 INCHES NOMINAL IN
First Counterbore Diameter0.375 INCHES NOMINAL IN
Style DesignatorCOUNTERBORE
Outside Diameter0.625 INCHES NOMINAL IN
Identification Code ColorWHITE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-164-2004 INTERCHANGEABLE
Ring,retaining
6810-00-233-0110 INTERCHANGEABLE
Sodium Thiosulfate,pentahydrate
6810-00-234-8380 INTERCHANGEABLE
Sodium Thiosulfate,pentahydrate
5970-00-240-0332 INTERCHANGEABLE
Insulator,standoff
5970-00-248-8774 INTERCHANGEABLE
Insulator,standoff
5930-00-265-9510K-860379PT1 INTERCHANGEABLE
Switch,push
L3 Technologies, Inc. Div Communication Systems-East
4820-00-273-9735394-6 INTERCHANGEABLE
Valve,foot
Crane Co Div Valve Div
4910-00-599-9448I-410-L INTERCHANGEABLE
Inflator Attachment
Haltec Corp
6505-00-765-082301-4842 INTERCHANGEABLE
Hydroxyzine Pamoate Capsules
Goldline Laboratories, Inc. Dba Goldline Laboratories
4730-01-124-00903946 INTERCHANGEABLE
Insert,hose Fitting
Ingersoll-Rand Company Dba Ingersoll-Rand
Cross-Reference Index
Part NumberManufacturer
39-46 Barker & Williamson (USA)
JANI8T Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
1173A Advanced Technical Ceramics Company Dba Advanced Technical Ceramics Co Div Adtech Ceramics (USA)
NS4AW4202 Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
914R117 Motorola Inc. Dba Integrated Information Systems Group (USA)
914R117 General Dynamics Mission Systems, Inc. Dba Gdms (USA)
Related Parts
5325-00-164-2004INTERCHANGEABLE
RING,RETAINING
6810-00-233-0110INTERCHANGEABLE
SODIUM THIOSULFATE,PENTAHYDRATE
6810-00-234-8380INTERCHANGEABLE
SODIUM THIOSULFATE,PENTAHYDRATE
5970-00-240-0332INTERCHANGEABLE
INSULATOR,STANDOFF
5970-00-248-8774INTERCHANGEABLE
INSULATOR,STANDOFF
5930-00-265-9510INTERCHANGEABLE
SWITCH,PUSH
K-860379PT1
4820-00-273-9735INTERCHANGEABLE
VALVE,FOOT
394-6
4910-00-599-9448INTERCHANGEABLE
INFLATOR ATTACHMENT
I-410-L
6505-00-765-0823INTERCHANGEABLE
HYDROXYZINE PAMOATE CAPSULES
01-4842
4730-01-124-0090INTERCHANGEABLE
INSERT,HOSE FITTING
3946
5305-01-190-7491INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
27695
5950-01-222-8629INTERCHANGEABLE
COIL,ELECTRICAL

Frequently Asked Questions

What is NSN 5970-00-157-0730?

NSN 5970-00-157-0730 is a Insulator,bowl, manufactured by Barker & Williamson, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-157-0730?

NSN 5970-00-157-0730 has 6 cross-referenced part numbers: 39-46 (Barker & Williamson), JANI8T (Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 1173A (Advanced Technical Ceramics Company Dba Advanced Technical Ceramics Co Div Adtech Ceramics), NS4AW4202 (Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 914R117 (Motorola Inc. Dba Integrated Information Systems Group) and 1 more.

What NSN replaces 5970-00-157-0730?

There are 12 known substitutes for 5970-00-157-0730: 5325-00-164-2004, 6810-00-233-0110, 6810-00-234-8380 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 39-46?

Key specifications for 39-46: Material: STEATITE MOUNTING BASE; Top Hole Diameter: 0.156 INCHES NOMINAL IN; Special Features: GLAZED FINISH; First Counterbore Depth: 0.250 INCHES NOMINAL IN. 10 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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