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PartsTable / COMPONENT / 801-6408783-FIND-NO-37
801-6408783-FIND-NO-37 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY K-500 OVERALL, head_style: FLAT FILLISTER, head_height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, fastener_length: 0.750 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-414-4990, 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
801-6408783-FIND-NO-37
NSN: 5305-01-414-4990
FSC: 5305
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY K-500 OVERALL
head_styleFLAT FILLISTER
head_height0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
fastener_length0.750 INCHES NOMINAL IN
locking_featureSTRIP OR PELLET OR PATCH THREADS
internal_drive_styleHEXAGON
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNRC
material_document_and_classificationQQ-N-286 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5305-01-414-4990
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 801-6408783-FIND-NO-37 · 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: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
LOCKING FEATURE: STRIP OR PELLET OR PATCH THREADS
•
THREAD QUANTITY PER INCH: 20
•
INTERNAL DRIVE STYLE: HEXAGON
•
THREAD SERIES DESIGNATOR: UNRC
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 FED SPEC ALL MATERIAL RESPONSES OVERALL
LOCKING FEATURESTRIP OR PELLET OR PATCH THREADS
THREAD QUANTITY PER INCH20
INTERNAL DRIVE STYLEHEXAGON
THREAD SERIES DESIGNATORUNRC
FASTENER LENGTH0.750 INCHES NOMINAL IN
THREAD CLASS3A A
HEAD DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
0.250-20UNRC-3AX0.750LG NICUALD4Interchangeable
interchangeable cross-reference
interchangeable
7383858-DF330643-037Interchangeable
interchangeable cross-reference
interchangeable
7550478-DF330643-97-37Interchangeable
interchangeable cross-reference
interchangeable
M1222SN4C312NCLNInterchangeable
Same NIIN cross-reference
interchangeable
211067204Interchangeable
Same NIIN cross-reference
interchangeable
DF330643-FIND-NO-37Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 801-6408783-FIND-NO-37?
801-6408783-FIND-NO-37 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 801-6408783-FIND-NO-37?
There are 9 known substitutes for 801-6408783-FIND-NO-37: 0.250-20UNRC-3AX0.750LG NICUALD4, 7383858-DF330643-037, 7550478-DF330643-97-37 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 801-6408783-FIND-NO-37?
801-6408783-FIND-NO-37 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-414-4990. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026