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PartsTable / COMPONENT / PWA50640-2
PWA50640-2 ✓ 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: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.121 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.198 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN, thread_length: 0.325 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-109-5455, 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
PWA50640-2
NSN: 5305-01-109-5455
FSC: 5305
CAGE: 74445 — H-K CONNECTICUT HOLDING COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.121 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.198 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
thread_length0.325 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
fastener_length0.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats0.094 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.125 INCHES IN
thread_quantity_per_inch40
NSN5305-01-109-5455
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PWA50640-2 · 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
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNRC
•
HEAD DIAMETER: 0.198 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.325 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD HEIGHT: 0.121 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.125 INCHES IN
•
WIDTH ACROSS FLATS: 0.094 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNRC
HEAD DIAMETER0.198 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
THREAD LENGTH0.325 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
HEAD HEIGHT0.121 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.125 INCHES IN
WIDTH ACROSS FLATS0.094 INCHES NOMINAL IN
INTERNAL DRIVE STYLEHEXAGON
THREAD QUANTITY PER INCH40
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
H90L927Interchangeable
interchangeable cross-reference
interchangeable
4735714-0Interchangeable
interchangeable cross-reference
interchangeable
D355Interchangeable
interchangeable cross-reference
interchangeable
72030Interchangeable
interchangeable cross-reference
interchangeable
72030-00Interchangeable
interchangeable cross-reference
interchangeable
01121737Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PWA50640-2?
PWA50640-2 is a SCREW,CAP,SOCKET HEAD.
What parts can replace PWA50640-2?
There are 8 known substitutes for PWA50640-2: H90L927, 4735714-0, D355 and 5 more. Substitute compatibility should be verified for your specific system.
Is PWA50640-2 still available?
PWA50640-2 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