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31133400040 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

31133400040: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL COMP XM-7 OVERALL, head_style: WATERTIGHT, head_height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.256 INCHES MINIMUM AND 0.294 INCHES MAXIMUM IN, thread_length: 0.199 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-192-5735, 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
31133400040
NSN: 5305-01-192-5735
FSC: 5305 — Screws
CAGE: U22Y0 — ELBIT SYSTEMS UK LIMITED (GBR)
SPECIFICATIONS
materialSTEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL COMP XM-7 OVERALL
head_styleWATERTIGHT
head_height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.256 INCHES MINIMUM AND 0.294 INCHES MAXIMUM IN
thread_length0.199 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
fastener_length0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
locking_featureSTRIP OR PATCH OR PELLET THREADS
special_featuresFURNISHED WITH ONE SILICONE O-RING
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleCROSS RECESS TYPE 1
NSN5305-01-192-5735
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 31133400040 · 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: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.199 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A493 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR ASTM A493 ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-763 FED SPEC 3RD MATERIAL RESPONSE OR ASTM A493 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A493 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A493 ASSN STD 5TH MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: WATERTIGHT
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
FASTENER LENGTH0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.199 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A493 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR ASTM A493 ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-763 FED SPEC 3RD MATERIAL RESPONSE OR ASTM A493 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A493 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A493 ASSN STD 5TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEWATERTIGHT
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATURESTRIP OR PATCH OR PELLET THREADS
SPECIAL FEATURESFURNISHED WITH ONE SILICONE O-RING
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 2
HT06R32S04PReference document
Same NSN cross-reference
Reference document — Secondary reference
MS3212-11LReference 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 31133400040?
31133400040 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 31133400040?
There are 2 known substitutes for 31133400040: HT06R32S04P, MS3212-11L. Substitute compatibility should be verified for your specific system.
What is the NSN for 31133400040?
31133400040 is cataloged in the U.S. Government catalog under NSN 5305-01-192-5735. 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.