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T320010501 — SCREW,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

T320010501: SCREW,EXTERNALLY RELIEVED BODY.

The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 303 OVERALL, head_style: KNURLED NO. 1, head_height: 0.312 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.312 INCHES NOMINAL IN, thread_length: 0.250 INCHES MINIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-883-9484, 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
T320010501
NSN: 5305-00-883-9484
FSC: 5305 — Screws
CAGE: 36090 — LOCKHEED MARTIN LIBRASCOPE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 303 OVERALL
head_styleKNURLED NO. 1
head_height0.312 INCHES NOMINAL IN
thread_class2A A
head_diameter0.312 INCHES NOMINAL IN
thread_length0.250 INCHES MINIMUM IN
fastener_length0.500 INCHES NOMINAL IN
special_featuresW/NONSTANDARD POINT 0.093LG 90.0 DEG 0.095 DUA
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleSLOT
nominal_thread_diameter0.138 INCHES IN
NSN5305-00-883-9484
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: T320010501 · 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: 0.312 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.500 INCHES NOMINAL IN
•
THREAD LENGTH: 0.250 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 COND A FED SPEC 1ST MATERIAL RESPONSE OR ASTM A582 COND A ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.095 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: KNURLED NO. 1
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.312 INCHES NOMINAL IN
FASTENER LENGTH0.500 INCHES NOMINAL IN
THREAD LENGTH0.250 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 COND A FED SPEC 1ST MATERIAL RESPONSE OR ASTM A582 COND A ASSN STD 2ND MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.095 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.157 INCHES NOMINAL IN
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
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 5
6102SS0632Reference document
Same NSN cross-reference
Reference document — Secondary reference
3450714-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
6102SS0632-7Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
6170SS0632-7Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
4006-M07-F09Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is T320010501?
T320010501 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace T320010501?
There are 5 known substitutes for T320010501: 6102SS0632, 3450714-1, 6102SS0632-7 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for T320010501?
T320010501 is cataloged in the U.S. Government catalog under NSN 5305-00-883-9484. 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.