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841581-251 — SCREW ASSEMBLY,PANEL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

841581-251: SCREW ASSEMBLY,PANEL.

The SCREW ASSEMBLY,PANEL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 SECONDARY WASHER, head_style: PAN, head_height: 0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN, thread_class: NC, head_diameter: 0.289 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN, fastener_length: 0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-481-0564, 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
841581-251
NSN: 5305-01-481-0564
FSC: 5305 — Screws
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 304 SECONDARY WASHER
head_stylePAN
head_height0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN
thread_classNC
head_diameter0.289 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN
fastener_length0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentOXIDE SECONDARY WASHER
internal_drive_styleSLOT
end_item_identification5895011278134
nominal_thread_diameter0.164 INCHES IN
thread_quantity_per_inch32
NSN5305-01-481-0564
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 841581-251 · 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: 0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.062 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD STYLE: PAN
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: OXIDE FASTENER
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN
FASTENER LENGTH0.922 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN
MATERIAL ACCOMMODATED THICKNESS0.062 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD STYLEPAN
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTOXIDE FASTENER
SURFACE TREATMENTPASSIVATE SPRING
SURFACE TREATMENTOXIDE PRIMARY WASHER
SURFACE TREATMENTOXIDE STAND-OFF
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 841581-251?
841581-251 is a SCREW ASSEMBLY,PANEL.
What is the NSN for 841581-251?
841581-251 is cataloged in the U.S. Government catalog under NSN 5305-01-481-0564. This indicates validated use in U.S. government and defense supply chains.
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