PartsTable
Technical Data Sheet
Download PDF

A422-21 — INSULATOR,PLATE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A422-21: INSULATOR,PLATE.

The INSULATOR,PLATE is a the manufacturer industrial component. Key specifications include overall_width: 1.063 INCHES NOMINAL IN, overall_height: 0.005 INCHES NOMINAL IN, overall_length: 1.655 INCHES NOMINAL IN, first_end_radius: 0.234 INCHES NOMINAL IN, style_designator: FLAT, DIAMOND, unable_to_decode: UNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 5970-00-454-6254, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
A422-21
NSN: 5970-00-454-6254
NIINs: 004546254, 010438572, 010849409
FSC: 5970 — Electrical Insulators and Insulating Materials
CAGE: 86928 — SEASTROM MANUFACTURING CO INC (USA)
SPECIFICATIONS
overall_width1.063 INCHES NOMINAL IN
overall_height0.005 INCHES NOMINAL IN
overall_length1.655 INCHES NOMINAL IN
first_end_radius0.234 INCHES NOMINAL IN
style_designatorFLAT, DIAMOND
unable_to_decodeUNABLE TO DECODE
first_side_radius0.5315 INCHES NOMINAL IN
component_quantity2
fifth_hole_spacing0.215 INCHES NOMINAL IN
first_hole_spacing0.234 INCHES NOMINAL IN
third_hole_spacing1.187 INCHES NOMINAL IN
first_hole_diameter0.156 INCHES NOMINAL IN
NSN5970-00-454-6254
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSULATOR,PLATE TITLE COMPONENT PN A422-21 MFR INSULATOR,PLATE
KEY FEATURES
•
FIRST END RADIUS: 0.234 INCHES NOMINAL IN
•
FIFTH HOLE SPACING: 0.215 INCHES NOMINAL IN
•
FIRST HOLE DIAMETER: 0.156 INCHES NOMINAL IN
•
THIRD HOLE SPACING: 1.187 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT, DIAMOND
•
FIRST SIDE RADIUS: 0.5315 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.005 INCHES NOMINAL IN
FIRST END RADIUS0.234 INCHES NOMINAL IN
FIFTH HOLE SPACING0.215 INCHES NOMINAL IN
FIRST HOLE DIAMETER0.156 INCHES NOMINAL IN
THIRD HOLE SPACING1.187 INCHES NOMINAL IN
STYLE DESIGNATORFLAT, DIAMOND
FIRST SIDE RADIUS0.5315 INCHES NOMINAL IN
OVERALL LENGTH1.655 INCHES NOMINAL IN
OVERALL WIDTH1.063 INCHES NOMINAL IN
SECOND HOLE SPACING0.5215 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
43-03-3-5MILReference document
Same NSN cross-reference
Reference document — Design control — primary reference
935458-8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
Ready to buy A422-21?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A422-21?
A422-21 is a INSULATOR,PLATE.
What parts can replace A422-21?
There are 2 known substitutes for A422-21: 43-03-3-5MIL, 935458-8. Substitute compatibility should be verified for your specific system.
What is the NSN for A422-21?
A422-21 is cataloged in the U.S. Government catalog under NSN 5970-00-454-6254. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A422-21

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.