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Technical Data Sheet
PartsTable / COMPONENT / 100A905078
100A905078 ✓ 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: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL, head_style: FLAT CHAMFER, head_height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.158 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-145-5306, 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
100A905078
NSN: 5305-01-145-5306
FSC: 5305
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
head_styleFLAT CHAMFER
head_height0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.158 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
fastener_length0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_across_flats0.141 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.164 INCHES IN
thread_quantity_per_inch32
NSN5305-01-145-5306
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 100A905078 · 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 DOCUMENT AND CLASSIFICATION: 00-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
HEAD HEIGHT: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
WIDTH ACROSS FLATS: 0.141 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
FASTENER LENGTH: 0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.158 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATION00-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
HEAD HEIGHT0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.141 INCHES NOMINAL IN
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
NOMINAL THREAD DIAMETER0.164 INCHES IN
FASTENER LENGTH0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
THREAD LENGTH0.158 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
THREAD CLASS3A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
NASM24671-78Interchangeable
interchangeable cross-reference
interchangeable
MS24671-78Interchangeable
interchangeable cross-reference
interchangeable
FF-S-86 TYPE IVInterchangeable
interchangeable cross-reference
interchangeable
51480Interchangeable
interchangeable cross-reference
interchangeable
92197A244Interchangeable
interchangeable cross-reference
interchangeable
0.750-10UNC-3A2.250 LGInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 100A905078?
100A905078 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 100A905078?
There are 13 known substitutes for 100A905078: NASM24671-78, MS24671-78, FF-S-86 TYPE IV and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 100A905078?
100A905078 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-145-5306. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026