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6885391 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6885391: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include head_style: HEXAGON EXTENDED WASHER, head_height: 0.350 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.437 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN, fastener_length: 0.562 INCHES NOMINAL IN, hardness_rating: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-044-2119, 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
6885391
NSN: 5305-01-044-2119
FSC: 5305 — Screws
CAGE: 63005 — ROLLS-ROYCE CORPORATION (USA)
SPECIFICATIONS
head_styleHEXAGON EXTENDED WASHER
head_height0.350 INCHES NOMINAL IN
thread_class2A A
thread_length0.437 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
fastener_length0.562 INCHES NOMINAL IN
hardness_rating23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats0.562 INCHES NOMINAL IN
nominal_thread_diameter0.375 INCHES IN
extended_washer_diameter0.740 INCHES NOMINAL IN
minimum_tensile_strength120000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch16
NSN5305-01-044-2119
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6885391 · 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
•
EXTENDED WASHER THICKNESS: 0.092 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.350 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.562 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.740 INCHES NOMINAL IN
•
THREAD LENGTH: 0.437 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE GRADE 5 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.092 INCHES NOMINAL IN
HEAD HEIGHT0.350 INCHES NOMINAL IN
FASTENER LENGTH0.562 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.740 INCHES NOMINAL IN
THREAD LENGTH0.437 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GRADE 5 ASSN STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEHEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
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
6837714Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 6885391?
6885391 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 6885391?
There is 1 known substitute for 6885391: 6837714. Substitute compatibility should be verified for your specific system.
What is the NSN for 6885391?
6885391 is cataloged in the U.S. Government catalog under NSN 5305-01-044-2119. 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.