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583378 — BASE,TIMER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

583378: BASE,TIMER.

The BASE,TIMER is a the manufacturer industrial component. Key specifications include end_item_identification: 2805-01-004-2393. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-281-1195, 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
583378
NSN: 5325-00-281-1195
NIINs: 002811195, 013228910
FSC: 5325 — Fastening Devices
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
end_item_identification2805-01-004-2393
NSN5325-00-281-1195
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 583378 · 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
•
MATERIAL HARDNESS RATING: 47.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM
•
USAGE DESIGN: EXTERNAL
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STRENGTH RATING: ERR-060
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633, AMEND. 2, FS 1065 TO FS 1090 FED SPEC SINGLE MATERIAL RESPONSE
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CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
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MAJOR THICKNESS: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 0.540 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING47.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM
USAGE DESIGNEXTERNAL
STRENGTH RATINGERR-060
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633, AMEND. 2, FS 1065 TO FS 1090 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
INSIDE DIAMETER0.540 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEEXTERNAL
SURFACE TREATMENTCADMIUM OR ZINC AND DICHROMATE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 583378?
583378 is a BASE,TIMER.
What is the NSN for 583378?
583378 is cataloged in the U.S. Government catalog under NSN 5325-00-281-1195. 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.