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101666 — CLAMP,LOOP

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

101666: CLAMP,LOOP.

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include scale_type: DIAL. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-010-1666, 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
101666
NSN: 5306-00-010-1666
NIINs: 000101666, 006709552, 008866067, 013812336, 016702285
FSC: 5306 — Bolts
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
scale_typeDIAL
NSN5306-00-010-1666
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 101666 · 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: 0.400 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.500 INCHES NOMINAL IN
•
THREAD LENGTH: 1.500 INCHES MINIMUM IN
•
HARDNESS RATING: 95.0 ROCKWELL B MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE J429 GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
HEAD STYLE: SQUARE
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.400 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN
FASTENER LENGTH2.500 INCHES NOMINAL IN
THREAD LENGTH1.500 INCHES MINIMUM IN
HARDNESS RATING95.0 ROCKWELL B MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429 GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLESQUARE
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
FF-B-575TY1GR2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5/8-11UNC-2A X 2.500 BOLTReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 101666?
101666 is a CLAMP,LOOP.
What parts can replace 101666?
There are 2 known substitutes for 101666: FF-B-575TY1GR2, 5/8-11UNC-2A X 2.500 BOLT. Substitute compatibility should be verified for your specific system.
What is the NSN for 101666?
101666 is cataloged in the U.S. Government catalog under NSN 5306-00-010-1666. 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.