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201253 — REACTOR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

201253: REACTOR.

The REACTOR is a the manufacturer industrial component. Key specifications include body_width: 3.800 INCHES MAXIMUM IN, body_height: 4.640 INCHES MAXIMUM IN, body_length: 5.380 INCHES NOMINAL IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING, inclosure_type: FULLY INCLOSED, mounting_method: SLOT SINGLE GROUP. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-359-8359, 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
201253
NSN: 5305-00-359-8359
NIINs: 003598359, 010784257, 013440681
FSC: 5305 — Screws
CAGE: 77948 — SINGER CO THE (USA)
SPECIFICATIONS
body_width3.800 INCHES MAXIMUM IN
body_height4.640 INCHES MAXIMUM IN
body_length5.380 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeFULLY INCLOSED
mounting_methodSLOT SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
winding_quantity1 SINGLE COMPONENT
inductance_rating3.55 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
mounting_slot_width0.400 INCHES NOMINAL SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
mounting_facility_quantity4 SINGLE GROUP
NSN5305-00-359-8359
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 201253 · 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
SUBSTITUTES & CROSS-REFERENCES 1
201253FReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 201253?
201253 is a REACTOR.
What parts can replace 201253?
There is 1 known substitute for 201253: 201253F. Substitute compatibility should be verified for your specific system.
What is the NSN for 201253?
201253 is cataloged in the U.S. Government catalog under NSN 5305-00-359-8359. 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.