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LB35-4-15 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

LB35-4-15: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.938 INCHES MINIMUM AND 0.954 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN, head_diameter: 0.5018 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-175-3673, 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
LB35-4-15
NSN: 5305-01-175-3673
FSC: 5305 — Screws
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleFLAT COUNTERSUNK
grip_length0.938 INCHES MINIMUM AND 0.954 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN
head_diameter0.5018 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM IN
thread_length0.474 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length1.448 INCHES MINIMUM AND 1.528 INCHES MAXIMUM IN
special_featuresINCLUDES NUT
thread_directionRIGHT-HAND
countersink_angle100.0 DEGREES NOMINAL
NSN5305-01-175-3673
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: LB35-4-15 · 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: 63.0 MICROINCHES GRIP
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.448 INCHES MINIMUM AND 1.528 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.474 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES GRIP
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
FASTENER LENGTH1.448 INCHES MINIMUM AND 1.528 INCHES MAXIMUM IN
THREAD LENGTH0.474 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 2
ST3M791C4-15Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10115546Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 LB35-4-15?
LB35-4-15 is a SCREW,CLOSE TOLERANCE.
What parts can replace LB35-4-15?
There are 2 known substitutes for LB35-4-15: ST3M791C4-15, 10115546. Substitute compatibility should be verified for your specific system.
What is the NSN for LB35-4-15?
LB35-4-15 is cataloged in the U.S. Government catalog under NSN 5305-01-175-3673. 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.