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135191-9 — SCREW ASSEMBLY,PANEL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

135191-9: SCREW ASSEMBLY,PANEL.

The SCREW ASSEMBLY,PANEL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 305 OR STEEL COMP 316 FASTENER, head_style: FLAT CHAMFER, head_height: 0.495 INCHES NOMINAL0.495 INCHES NOMINAL IN, thread_class: 2A2A, head_diameter: 0.420 INCHES NOMINAL IN, thread_length: 0.483 INCHES NOMINAL0.483 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-235-8318, 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
135191-9
NSN: 5305-01-235-8318
FSC: 5305 — Screws
CAGE: 37695 — RAYTHEON COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 305 OR STEEL COMP 316 FASTENER
head_styleFLAT CHAMFER
head_height0.495 INCHES NOMINAL0.495 INCHES NOMINAL IN
thread_class2A2A
head_diameter0.420 INCHES NOMINAL IN
thread_length0.483 INCHES NOMINAL0.483 INCHES NOMINAL IN
fastener_length0.545 INCHES NOMINAL IN
hardness_rating85.0 ROCKWELL B MINIMUM AND 90.0 ROCKWELL B MAXIMUM PRIMARY WASHER
special_featuresSTRAIGHT KNURL ON HEAD
thread_directionRIGHT-HANDRIGHT-HAND
surface_treatmentANODIZE HEAD
internal_drive_styleSLOT
NSN5305-01-235-8318
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 135191-9 · 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: 0.495 INCHES NOMINAL0.495 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.545 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
•
MATERIAL ACCOMMODATED THICKNESS: 0.066 INCHES MINIMUM AND 0.066 INCHES MINIMUM AND 0.100 INCHES MAXIMUM0.100 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.483 INCHES NOMINAL0.483 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.495 INCHES NOMINAL0.495 INCHES NOMINAL IN
FASTENER LENGTH0.545 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STAND-OFF
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER
MATERIAL ACCOMMODATED THICKNESS0.066 INCHES MINIMUM AND 0.066 INCHES MINIMUM AND 0.100 INCHES MAXIMUM0.100 INCHES MAXIMUM IN
THREAD LENGTH0.483 INCHES NOMINAL0.483 INCHES NOMINAL IN
HARDNESS RATING85.0 ROCKWELL B MINIMUM AND 90.0 ROCKWELL B MAXIMUM PRIMARY WASHER
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A493 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
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 2
DMSWW7500-8-A-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
DMSWW7500-8-A-4 135191-9Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 135191-9?
135191-9 is a SCREW ASSEMBLY,PANEL.
What parts can replace 135191-9?
There are 2 known substitutes for 135191-9: DMSWW7500-8-A-4, DMSWW7500-8-A-4 135191-9. Substitute compatibility should be verified for your specific system.
What is the NSN for 135191-9?
135191-9 is cataloged in the U.S. Government catalog under NSN 5305-01-235-8318. 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.