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549-0931-003 — SCREW,ASSEMBLED WASHER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

549-0931-003: SCREW,ASSEMBLED WASHER.

The SCREW,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, head_style: FLAT CHAMFER, head_height: 0.144 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.255 INCHES NOMINAL IN, thread_length: 0.441 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-019-6293, 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
549-0931-003
NSN: 5305-00-019-6293
FSC: 5305 — Screws
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
head_styleFLAT CHAMFER
head_height0.144 INCHES NOMINAL IN
thread_class2A A
head_diameter0.255 INCHES NOMINAL IN
thread_length0.441 INCHES MINIMUM IN
fastener_length4.177 INCHES NOMINAL IN
washer_quantity1
special_featuresRED ENAMEL PAINT ON HEAD
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleCROSS RECESS TYPE 1
NSN5305-00-019-6293
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 549-0931-003 · 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: 0.144 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.177 INCHES NOMINAL IN
•
PRIMARY WASHER OUTSIDE DIAMETER: 0.267 INCHES NOMINAL IN
•
THREAD LENGTH: 0.441 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
PRIMARY WASHER STYLE: FLAT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.144 INCHES NOMINAL IN
FASTENER LENGTH4.177 INCHES NOMINAL IN
PRIMARY WASHER OUTSIDE DIAMETER0.267 INCHES NOMINAL IN
THREAD LENGTH0.441 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD STYLEFLAT CHAMFER
PRIMARY WASHER STYLEFLAT
THREAD DIRECTIONRIGHT-HAND
PRIMARY WASHER MATERIAL THICKNESS0.025 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
5305PL0890197Reference 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 549-0931-003?
549-0931-003 is a SCREW,ASSEMBLED WASHER.
What parts can replace 549-0931-003?
There is 1 known substitute for 549-0931-003: 5305PL0890197. Substitute compatibility should be verified for your specific system.
What is the NSN for 549-0931-003?
549-0931-003 is cataloged in the U.S. Government catalog under NSN 5305-00-019-6293. 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.