PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 117573B
117573B ✓ 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

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN, material: STEEL OVERALL, drive_type: SLOTTED, eyelet_length: 0.257 INCHES NOMINAL IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, stud_assembly_style: STUD ASSEMBLY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-639-4889, 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
117573B
NSN: 5325-00-639-4889
FSC: 5325
CAGE: F0555 — MBDA FRANCE (FRA)
SPECIFICATIONS
diameter0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN
materialSTEEL OVERALL
drive_typeSLOTTED
eyelet_length0.257 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
stud_assembly_styleSTUD ASSEMBLY
eyelet_outside_diameter0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
turnlock_stud_head_styleFLAT COUNTERSUNK
material_accommodated_thickness0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
distance_from_engaging_member_to_largest_bearing_surface_of_head0.483 INCHES MINIMUM AND 0.493 INCHES MAXIMUM IN
NSN5325-00-639-4889
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 117573B · 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
•
DRIVE TYPE: SLOTTED
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
DIAMETER: 0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
•
EYELET LENGTH: 0.257 INCHES NOMINAL IN
•
STUD ASSEMBLY STYLE: STUD ASSEMBLY
•
TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE TYPESLOTTED
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
DIAMETER0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN
MATERIAL ACCOMMODATED THICKNESS0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
EYELET LENGTH0.257 INCHES NOMINAL IN
STUD ASSEMBLY STYLESTUD ASSEMBLY
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD0.483 INCHES MINIMUM AND 0.493 INCHES MAXIMUM IN
EYELET OUTSIDE DIAMETER0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
116206SFInterchangeable
interchangeable cross-reference
interchangeable
40023Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
157 23/64Interchangeable
interchangeable cross-reference
interchangeable
48523Interchangeable
interchangeable cross-reference
interchangeable
N0083Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 117573B?
117573B is a STUD ASSEMBLY,TURNLOCK FASTENER.
What parts can replace 117573B?
There are 9 known substitutes for 117573B: 116206SF, 40023, 00044 and 6 more. Substitute compatibility should be verified for your specific system.
Is 117573B still available?
117573B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026