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1021-390 — COOLER,FLUID,INDUSTRIAL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1021-390: COOLER,FLUID,INDUSTRIAL.

The COOLER,FLUID,INDUSTRIAL is a the manufacturer industrial component. Key specifications include end_item_identification: 2320-01-519-8173, part_name_assigned_by_controlling_agency: EXCHANGER,HEAT. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-038-4416, 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
1021-390
NSN: 5306-00-038-4416
NIINs: 000384416, 015293353, 016686684
FSC: 5306 — Bolts
CAGE: 10137 — SZEMCO INC (USA)
SPECIFICATIONS
end_item_identification2320-01-519-8173
part_name_assigned_by_controlling_agencyEXCHANGER,HEAT
NSN5306-00-038-4416
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1021-390 · 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
•
HEAD HEIGHT: 0.156 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.719 INCHES NOMINAL IN
•
THREAD LENGTH: 0.656 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 COMP 8640 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.156 INCHES NOMINAL IN
FASTENER LENGTH0.719 INCHES NOMINAL IN
THREAD LENGTH0.656 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 COMP 8640 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL IN
THREAD CLASS2A A
SUBSTITUTES & CROSS-REFERENCES 8
1DPB169AReference document
Same NSN cross-reference
Reference document — Secondary reference
JHP110-113Reference document
Same NSN cross-reference
Reference document — Secondary reference
360D1-0597Reference document
Same NSN cross-reference
Reference document — Secondary reference
460D1-0568Reference document
Same NSN cross-reference
Reference document — Secondary reference
JHP33-90Reference document
Same NSN cross-reference
Reference document — Secondary reference
18554Reference document
Same NSN cross-reference
Reference document — Secondary 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 1021-390?
1021-390 is a COOLER,FLUID,INDUSTRIAL.
What parts can replace 1021-390?
There are 8 known substitutes for 1021-390: 1DPB169A, JHP110-113, 360D1-0597 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1021-390?
1021-390 is cataloged in the U.S. Government catalog under NSN 5306-00-038-4416. 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.