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DF33003-7-49 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

DF33003-7-49: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: SPLINE DRIVE SHEAR HEAD, grip_length: 3.053 INCHES MINIMUM AND 3.073 INCHES MAXIMUM IN, head_height: 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-385-8272, 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
DF33003-7-49
NSN: 5306-01-385-8272
FSC: 5306 — Bolts
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleSPLINE DRIVE SHEAR HEAD
grip_length3.053 INCHES MINIMUM AND 3.073 INCHES MAXIMUM IN
head_height0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN
thread_length0.599 INCHES NOMINAL IN
surface_finish32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length3.647 INCHES MINIMUM AND 3.677 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
head_minor_diameter0.707 INCHES NOMINAL IN
NSN5306-01-385-8272
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: DF33003-7-49 · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
HEAD HEIGHT: 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.647 INCHES MINIMUM AND 3.677 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.599 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
FASTENER LENGTH3.647 INCHES MINIMUM AND 3.677 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.599 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.4375 INCHES IN
HEAD STYLESPLINE DRIVE SHEAR HEAD
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 8
MB210-7-49Reference document
Same NSN cross-reference
Reference document — Secondary reference
MB209-7-49Reference document
Same NSN cross-reference
Reference document — Secondary reference
03A098-7-49Reference document
Same NSN cross-reference
Reference document — Secondary reference
123709-7-49Reference document
Same NSN cross-reference
Reference document — Secondary reference
PBF1420-7-49Reference document
Same NSN cross-reference
Reference document — Secondary reference
SII1188-7-49Reference 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 DF33003-7-49?
DF33003-7-49 is a BOLT,CLOSE TOLERANCE.
What parts can replace DF33003-7-49?
There are 8 known substitutes for DF33003-7-49: MB210-7-49, MB209-7-49, 03A098-7-49 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DF33003-7-49?
DF33003-7-49 is cataloged in the U.S. Government catalog under NSN 5306-01-385-8272. 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.