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Technical Data Sheet
PartsTable / COMPONENT / 74689
74689 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 600 AND GRAPHITE OVERALL, special_features: INCONEL 600/GRAPHITE, part_name_assigned_by_controlling_agency: GASKET,BONNET. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-125-8103, 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
74689
NSN: 5307-00-125-8103
FSC: 5307
CAGE: 64959 — AMERICAN TELEPHONE AND TELEGRAPH CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY 600 AND GRAPHITE OVERALL
special_featuresINCONEL 600/GRAPHITE
end_item_identificationTARAWA CLASS LHA;2IN CLASS 600 AEROFLOW WITH 6IN & 4IN ANSI B16.5 WELD NECK FLANGES 6IN DOUBLE ACTING SPRING RETURN PISTON ACTUATOR IN
part_name_assigned_by_controlling_agencyGASKET,BONNET
NSN5307-00-125-8103
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 74689 · 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
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
THREAD LENGTH: 0.250 INCHES MINIMUM NUT THREAD IN
•
THREAD CLASS: 2A NUT THREAD A
•
THREAD SERIES DESIGNATOR: UNF NUT THREAD
•
THREAD QUANTITY PER INCH: 40 NUT THREAD
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD LENGTH0.250 INCHES MINIMUM NUT THREAD IN
OVERALL LENGTH0.863 INCHES NOMINAL IN
THREAD CLASS2A NUT THREAD A
THREAD SERIES DESIGNATORUNF NUT THREAD
THREAD QUANTITY PER INCH40 NUT THREAD
THREAD QUANTITY PER INCH40 STUD THREAD
THREAD LENGTH0.156 INCHES MINIMUM STUD THREAD IN
NOMINAL THREAD SIZE0.138 INCHES STUD THREAD IN
SHOULDER DIAMETER0.281 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
71-62Interchangeable
interchangeable cross-reference
interchangeable
74689Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
A74689Interchangeable
interchangeable cross-reference
interchangeable
Y109101004N ITEM 12Interchangeable
interchangeable cross-reference
interchangeable
8395848Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74689?
74689 is a CLAMP,LOOP.
What parts can replace 74689?
There are 7 known substitutes for 74689: 71-62, 74689, 00044 and 4 more. Substitute compatibility should be verified for your specific system.
Is 74689 still available?
74689 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026