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99-3683-1 — RING,RETAINING,INSTRUMENT

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

99-3683-1: RING,RETAINING,INSTRUMENT.

The RING,RETAINING,INSTRUMENT is a the manufacturer industrial component. Key specifications include end_item_identification: HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 2320-01-097-0260 HIAB CRANE (HEMTT). This part is cataloged in the U.S.

Government catalog under NSN 5305-00-060-2933, 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
99-3683-1
NSN: 5305-00-060-2933
NIINs: 000602933, 012207599
FSC: 5305 — Screws
CAGE: 45934 — ONTIC ENGINEERING & MANUFACTURING, INC DBA ONTIC US (USA)
SPECIFICATIONS
end_item_identificationHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 2320-01-097-0260 HIAB CRANE (HEMTT)
NSN5305-00-060-2933
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 99-3683-1 · 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
•
FASTENER LENGTH: 0.312 INCHES NOMINAL IN
•
THREAD LENGTH: 0.312 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
COUNTERSINK ANGLE: 82.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.312 INCHES NOMINAL IN
THREAD LENGTH0.312 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTPASSIVATE OVERALL
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
THREAD CLASS2A A
THREAD QUANTITY PER INCH40
SUBSTITUTES & CROSS-REFERENCES 7
LP57J40P5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LL51959-14Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LL35200-13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
186222-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
910058-0405Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LL505C4R5MSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 99-3683-1?
99-3683-1 is a RING,RETAINING,INSTRUMENT.
What parts can replace 99-3683-1?
There are 7 known substitutes for 99-3683-1: LP57J40P5, LL51959-14, LL35200-13 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 99-3683-1?
99-3683-1 is cataloged in the U.S. Government catalog under NSN 5305-00-060-2933. This indicates validated use in U.S. government and defense supply chains.
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