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D16161-2 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

D16161-2: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT FILLISTER, head_height: 0.225 INCHES MINIMUM IN, thread_class: 3A A, head_diameter: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, thread_length: 1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-449-5433, 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
D16161-2
NSN: 5305-01-449-5433
FSC: 5305 — Screws
CAGE: 0HDW7 — HUCK INTERNATIONAL, INC. DIV HUCK PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT FILLISTER
head_height0.225 INCHES MINIMUM IN
thread_class3A A
head_diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
thread_length1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
fastener_length1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentNICKEL OVERALL
width_across_flats0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.250 INCHES IN
NSN5305-01-449-5433
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: D16161-2 · 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
•
WIDTH ACROSS FLATS: 0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.225 INCHES MINIMUM IN
•
FASTENER LENGTH: 1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-26074 CL 1, GRADE 8, MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: NAS1351-4 ASSN STD SINGLE MATERIAL RESPONSE AND FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT FILLISTER
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
HEAD HEIGHT0.225 INCHES MINIMUM IN
FASTENER LENGTH1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-26074 CL 1, GRADE 8, MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONNAS1351-4 ASSN STD SINGLE MATERIAL RESPONSE AND FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT FILLISTER
THREAD DIRECTIONRIGHT-HAND
NONSTANDARD THREAD PITCH DIAMETER+0.1897 TO 0.1928 INCHES IN
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
79078-4-20Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D16161-2?
D16161-2 is a SCREW,CAP,SOCKET HEAD.
What parts can replace D16161-2?
There is 1 known substitute for D16161-2: 79078-4-20. Substitute compatibility should be verified for your specific system.
What is the NSN for D16161-2?
D16161-2 is cataloged in the U.S. Government catalog under NSN 5305-01-449-5433. 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.