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554-2091-004 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

554-2091-004: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: PAN NO. 2, head_height: 0.115 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.312 INCHES NOMINAL IN, thread_length: 0.859 INCHES NOMINAL IN, screw_material: STEEL CORROSION RESISTING.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-230-9356, 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
554-2091-004
NSN: 5305-00-230-9356
FSC: 5305 — Screws
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
head_stylePAN NO. 2
head_height0.115 INCHES NOMINAL IN
thread_class2A A
head_diameter0.312 INCHES NOMINAL IN
thread_length0.859 INCHES NOMINAL IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.859 INCHES NOMINAL IN
special_featuresSCREW PAINTED W/RED G LOSS ENAMEL
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE II
nominal_thread_diameter0.164 INCHES IN
screw_surface_treatmentENAMEL
NSN5305-00-230-9356
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 554-2091-004 · 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: 0.115 INCHES NOMINAL IN
•
SCREW SURFACE TREATMENT: ENAMEL
•
FASTENER LENGTH: 0.859 INCHES NOMINAL IN
•
THREAD LENGTH: 0.859 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD STYLE: PAN NO. 2
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.115 INCHES NOMINAL IN
SCREW SURFACE TREATMENTENAMEL
FASTENER LENGTH0.859 INCHES NOMINAL IN
THREAD LENGTH0.859 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD STYLEPAN NO. 2
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL CORROSION RESISTING
SPECIAL FEATURESSCREW PAINTED W/RED G LOSS ENAMEL
INTERNAL DRIVE STYLECROSS RECESS TYPE II
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

No substitute or cross-reference records for this part.

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 554-2091-004?
554-2091-004 is a SCREW,MACHINE.
What is the NSN for 554-2091-004?
554-2091-004 is cataloged in the U.S. Government catalog under NSN 5305-00-230-9356. 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.