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99-7730-2 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

99-7730-2: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include MATERIAL: STEEL OVERALL, HOLE TYPE: DRILLEDDRILLED, HEAD HEIGHT: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN, THREAD CLASS: 3A A, HEAD DIAMETER: 0.221 INCHES MINIMUM AND 0.221 INCHES MINIMUM AND 0.226 INCHES MAXIMUM0.226 INCHES MAXIMUM IN, HOLE DIAMETER: 0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-480-8291, 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
99-7730-2
NSN: 5306-00-480-8291
FSC: 5306 — Bolts
CAGE: 48ZY0 — MAS COMPONENTS & COATINGS, LLC DBA MAS COMPONENTS & COATINGS LLC (USA)
SPECIFICATIONS
MATERIALSTEEL OVERALL
HOLE TYPEDRILLEDDRILLED
HEAD HEIGHT0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
THREAD CLASS3A A
HEAD DIAMETER0.221 INCHES MINIMUM AND 0.221 INCHES MINIMUM AND 0.226 INCHES MAXIMUM0.226 INCHES MAXIMUM IN
HOLE DIAMETER0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
HOLE QUANTITY1
THREAD LENGTH0.484 INCHES MINIMUM AND 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM0.516 INCHES MAXIMUM IN
FASTENER LENGTH1.275 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
WIDTH ACROSS FLATS0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
NSN5306-00-480-8291
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 99-7730-2 · 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
•
WIDTH ACROSS FLATS: 0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.275 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALLQQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
THREAD LENGTH: 0.484 INCHES MINIMUM AND 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM0.516 INCHES MAXIMUM IN
•
HOLE CONFIGURATION STYLE: ROUNDROUND
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
THREAD DIRECTION: RIGHT-HANDRIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
HEAD HEIGHT0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
FASTENER LENGTH1.275 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALLQQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH0.484 INCHES MINIMUM AND 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM0.516 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLEROUNDROUND
NOMINAL THREAD DIAMETER0.138 INCHES IN
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MINIMUM TENSILE STRENGTH190000 POUNDS PER SQUARE INCH190000 POUNDS PER SQUARE INCH LBS
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 99-7730-2?
99-7730-2 is a BOLT,INTERNAL WRENCHING.
What is the NSN for 99-7730-2?
99-7730-2 is cataloged in the U.S. Government catalog under NSN 5306-00-480-8291. 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.