PartsTable
Technical Data Sheet
NAS1081-3A8P ✓ 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 SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEADLESS (SETSCREW), point_style: FLAT, thread_class: 3A A, thread_length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, fastener_length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-057-0866, 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
NAS1081-3A8P
NSN: 5305-01-057-0866
FSC: 5305
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEADLESS (SETSCREW)
point_styleFLAT
thread_class3A A
thread_length0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
fastener_length0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
locking_featurePATCH THREADS
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5305-01-057-0866
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NAS1081-3A8P · 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 QUANTITY PER INCH: 32
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF)
WIDTH ACROSS FLATS: 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
SPECIFICATION/STANDARD DATA: 80205-NAS1081 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
MATERIAL: STEEL OVERALL
INTERNAL DRIVE STYLE: HEXAGON
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
WIDTH ACROSS FLATS0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
SPECIFICATION/STANDARD DATA80205-NAS1081 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NOMINAL THREAD DIAMETER0.190 INCHES IN
MATERIALSTEEL OVERALL
INTERNAL DRIVE STYLEHEXAGON
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
FF-S-200BInterchangeable
interchangeable cross-reference
interchangeable
FF-S-103Interchangeable
interchangeable cross-reference
interchangeable
FF-S-200Interchangeable
interchangeable cross-reference
interchangeable
231249Interchangeable
interchangeable cross-reference
interchangeable
FF-S-200B TYPE I STYLE 4Interchangeable
interchangeable cross-reference
interchangeable
AN565D10H6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS1081-3A8P?
NAS1081-3A8P is a SETSCREW.
What parts can replace NAS1081-3A8P?
There are 17 known substitutes for NAS1081-3A8P: FF-S-200B, FF-S-103, FF-S-200 and 14 more. Substitute compatibility should be verified for your specific system.
Is NAS1081-3A8P still available?
NAS1081-3A8P is currently cancelled.
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