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77C731117-1 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

77C731117-1: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, head_diameter: 11.7 MILLIMETERS NOMINAL MM, thread_length: 12.28 MILLIMETERS NOMINAL MM, screw_material: NICKEL ALLOY, fastener_length: 15.7 MILLIMETERS MINIMUM AND 16.3 MILLIMETERS MAXIMUM MM, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-478-3453, 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
77C731117-1
NSN: 5305-01-478-3453
FSC: 5305 — Screws
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
head_diameter11.7 MILLIMETERS NOMINAL MM
thread_length12.28 MILLIMETERS NOMINAL MM
screw_materialNICKEL ALLOY
fastener_length15.7 MILLIMETERS MINIMUM AND 16.3 MILLIMETERS MAXIMUM MM
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL
thread_series_designatorM
screw_material_document_and_classificationASTM-B-446 ASSN STD SINGLE MATERIAL RESPONSE
NSN5305-01-478-3453
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 77C731117-1 · 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
•
FASTENER LENGTH: 15.7 MILLIMETERS MINIMUM AND 16.3 MILLIMETERS MAXIMUM MM
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-B-446 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 12.28 MILLIMETERS NOMINAL MM
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: NICKEL ALLOY
•
COUNTERSINK ANGLE: 90.0 DEGREES NOMINAL
•
THREAD SERIES DESIGNATOR: M
TECHNICAL CHARACTERISTICS
FASTENER LENGTH15.7 MILLIMETERS MINIMUM AND 16.3 MILLIMETERS MAXIMUM MM
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONASTM-B-446 ASSN STD SINGLE MATERIAL RESPONSE
THREAD LENGTH12.28 MILLIMETERS NOMINAL MM
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALNICKEL ALLOY
COUNTERSINK ANGLE90.0 DEGREES NOMINAL
THREAD SERIES DESIGNATORM
HEAD DIAMETER11.7 MILLIMETERS NOMINAL MM
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 1
991/4/16258/616Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 77C731117-1?
77C731117-1 is a SCREW,MACHINE.
What parts can replace 77C731117-1?
There is 1 known substitute for 77C731117-1: 991/4/16258/616. Substitute compatibility should be verified for your specific system.
What is the NSN for 77C731117-1?
77C731117-1 is cataloged in the U.S. Government catalog under NSN 5305-01-478-3453. This indicates validated use in U.S. government and defense supply chains.
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