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PartsTable / COMPONENT / 100-3-1S6-4NRST
100-3-1S6-4NRST ✓ 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: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.248 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN, thread_length: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, screw_material: STEEL, fastener_length: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-282-8488, 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
100-3-1S6-4NRST
NSN: 5305-00-282-8488
FSC: 5305
CAGE: D8385 — THALES DEUTSCHLAND GMBH DIV CUSTOMER SERVICES (DEU)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.248 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
thread_length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
internal_drive_styleSLOT
nominal_thread_diameter0.138 INCHES IN
screw_surface_treatmentCADMIUM
thread_quantity_per_inch32
NSN5305-00-282-8488
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 100-3-1S6-4NRST · 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
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
SCREW SURFACE TREATMENT: CADMIUM
•
HEAD STYLE: FLAT COUNTERSUNK
•
INTERNAL DRIVE STYLE: SLOT
•
THREAD LENGTH: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 32
•
COUNTERSINK ANGLE: 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SCREW SURFACE TREATMENTCADMIUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLESLOT
THREAD LENGTH0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
THREAD CLASS2A A
NOMINAL THREAD DIAMETER0.138 INCHES IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AN507-632-4Interchangeable
interchangeable cross-reference
interchangeable
TP24693C-24Interchangeable
interchangeable cross-reference
interchangeable
946531-3024Interchangeable
interchangeable cross-reference
interchangeable
FFS92Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 100-3-1S6-4NRST?
100-3-1S6-4NRST is a SCREW,MACHINE.
What parts can replace 100-3-1S6-4NRST?
There are 4 known substitutes for 100-3-1S6-4NRST: AN507-632-4, TP24693C-24, 946531-3024 and 1 more. Substitute compatibility should be verified for your specific system.
Is 100-3-1S6-4NRST still available?
100-3-1S6-4NRST 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