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549-1090-01 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

549-1090-01: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: PAN NO. 2, head_height: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN, thread_length: 0.345 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN, screw_material: STEEL COMP 303 OR STEEL COMP 416.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-046-7987, 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
549-1090-01
NSN: 5305-01-046-7987
FSC: 5305 — Screws
CAGE: 25583 — ACRON AVIATION, INC. (USA)
SPECIFICATIONS
head_stylePAN NO. 2
head_height0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
thread_length0.345 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
screw_materialSTEEL COMP 303 OR STEEL COMP 416
fastener_length0.395 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.112 INCHES IN
thread_quantity_per_inch40
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-046-7987
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 549-1090-01 · 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: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.395 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.345 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: PAN NO. 2
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 303 OR STEEL COMP 416
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
FASTENER LENGTH0.395 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
THREAD LENGTH0.345 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEPAN NO. 2
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 303 OR STEEL COMP 416
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
THREAD QUANTITY PER INCH40
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 1
10114907Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 549-1090-01?
549-1090-01 is a SCREW,MACHINE.
What parts can replace 549-1090-01?
There is 1 known substitute for 549-1090-01: 10114907. Substitute compatibility should be verified for your specific system.
What is the NSN for 549-1090-01?
549-1090-01 is cataloged in the U.S. Government catalog under NSN 5305-01-046-7987. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.