PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1921S7
1921S7 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.080 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.290 INCHES NOMINAL IN, thread_length: 0.375 INCHES NOMINAL IN, screw_material: STEEL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-078-8830, 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
1921S7
NSN: 5305-00-078-8830
FSC: 5305
CAGE: F1549 — ARTUS DIV PACIFIC SCIENTIFIC ARTUS (FRA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.080 INCHES NOMINAL IN
thread_class3A A
head_diameter0.290 INCHES NOMINAL IN
thread_length0.375 INCHES NOMINAL IN
screw_materialSTEEL
fastener_length0.455 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.138 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-00-078-8830
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1921S7 · 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: 0.080 INCHES NOMINAL IN
•
HEAD DIAMETER: 0.290 INCHES NOMINAL IN
•
THREAD CLASS: 3A A
•
SCREW MATERIAL: STEEL
•
THREAD QUANTITY PER INCH: 32
•
INTERNAL DRIVE STYLE: SLOT
•
HEAD STYLE: FILLISTER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.080 INCHES NOMINAL IN
HEAD DIAMETER0.290 INCHES NOMINAL IN
THREAD CLASS3A A
SCREW MATERIALSTEEL
THREAD QUANTITY PER INCH32
INTERNAL DRIVE STYLESLOT
HEAD STYLEFILLISTER
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.138 INCHES IN
THREAD LENGTH0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
T1Interchangeable
interchangeable cross-reference
interchangeable
1583CInterchangeable
interchangeable cross-reference
interchangeable
500262Interchangeable
interchangeable cross-reference
interchangeable
A175-036135Interchangeable
interchangeable cross-reference
interchangeable
60-40681-28Interchangeable
interchangeable cross-reference
interchangeable
N12A-85-387SHInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 1921S7?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1921S7?
1921S7 is a SCREW,MACHINE.
What parts can replace 1921S7?
There are 9 known substitutes for 1921S7: T1, 1583C, 500262 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1921S7?
1921S7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-078-8830. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1921S7

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026