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MS16997-11 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MS16997-11: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN, thread_length: 0.419 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-983-5519, 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
MS16997-11
NSN: 5305-00-983-5519
FSC: 5305 — Screws
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
thread_length0.419 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
fastener_length0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.093 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5305-00-983-5519
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS16997-11 · 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: 0.093 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.419 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.093 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
HEAD HEIGHT0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
FASTENER LENGTH0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.419 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
NONDEFINITIVE SPEC/STD DATA6 TYPE
SUBSTITUTES & CROSS-REFERENCES 6
5305PL0971373Reference document
Same NSN cross-reference
Reference document — Informative reference only
NAS1352Reference document
Same NSN cross-reference
Reference document — Secondary reference
FF-S-86 REVISION CReference document
Same NSN cross-reference
Reference document — Identification reference
FFS86Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
MS35455+3Reference document
Same NSN cross-reference
Reference document — Secondary reference
10114763Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS16997-11?
MS16997-11 is a SCREW,CAP,SOCKET HEAD.
What parts can replace MS16997-11?
There are 6 known substitutes for MS16997-11: 5305PL0971373, NAS1352, FF-S-86 REVISION C and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS16997-11?
MS16997-11 is cataloged in the U.S. Government catalog under NSN 5305-00-983-5519. This indicates validated use in U.S. government and defense supply chains.
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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.