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6623A — TRANSFORMER,POWER AUTOTRANSFORME

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6623A: TRANSFORMER,POWER AUTOTRANSFORME.

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include material: STEEL, body_width: 2.136 INCHES NOMINAL IN, ring_style: WIRE, body_height: 2.100 INCHES NOMINAL IN, body_length: 2.464 INCHES NOMINAL IN, input_phase: SINGLE SINGLE OPERATING POWER RQMT. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-281-6663, 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
6623A
NSN: 5325-00-281-6663
NIINs: 002816663, 008146908, 012859151
FSC: 5325 — Fastening Devices
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL
body_width2.136 INCHES NOMINAL IN
ring_styleWIRE
body_height2.100 INCHES NOMINAL IN
body_length2.464 INCHES NOMINAL IN
input_phaseSINGLE SINGLE OPERATING POWER RQMT
usage_designINTERNAL
overall_width16.750 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_height5.220 INCHES NOMINAL IN
overall_length19.600 INCHES NOMINAL IN
inside_diameter1.090 INCHES NOMINAL IN
NSN5325-00-281-6663
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6623A · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
USAGE DESIGN: INTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 1.310 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.048 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.090 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: WIRE
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER1.310 INCHES NOMINAL IN
MAJOR THICKNESS0.048 INCHES NOMINAL IN
INSIDE DIAMETER1.090 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEWIRE
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
6623HSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6623A?
6623A is a TRANSFORMER,POWER AUTOTRANSFORME.
What parts can replace 6623A?
There is 1 known substitute for 6623A: 6623H. Substitute compatibility should be verified for your specific system.
What is the NSN for 6623A?
6623A is cataloged in the U.S. Government catalog under NSN 5325-00-281-6663. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.