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Technical Data Sheet
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DF2011-280 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

DF2011-280: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 500 OVERALL, head_style: FLAT CHAMFER, head_height: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, point_style: FLAT, thread_class: 2A A, head_diameter: 1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-487-5382, 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
DF2011-280
NSN: 5305-01-487-5382
NIINs: 014875382, 014875391, 014875395
FSC: 5305 — Screws
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialNICKEL ALLOY 500 OVERALL
head_styleFLAT CHAMFER
head_height0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
point_styleFLAT
thread_class2A A
head_diameter1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
thread_length1.750 INCHES NOMINAL IN
fastener_length1.875 INCHES NOMINAL IN
special_featuresSELF-LOCKING
thread_directionRIGHT-HAND
width_across_flats0.750 INCHES NOMINAL IN
point_chamfer_angle90.0 DEGREES NOMINAL
NSN5305-01-487-5382
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: DF2011-280 · 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: 0.375 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
FASTENER LENGTH: 4.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.750 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286, CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
HEAD HEIGHT0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
FASTENER LENGTH4.000 INCHES NOMINAL IN
THREAD LENGTH1.750 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286, CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
NONDEFINITIVE SPEC/STD DATA2 TYPE
SPECIAL FEATURESSELF-LOCKING
SUBSTITUTES & CROSS-REFERENCES 2
6726888Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
211068847Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DF2011-280?
DF2011-280 is a SCREW,CAP,SOCKET HEAD.
What parts can replace DF2011-280?
There are 2 known substitutes for DF2011-280: 6726888, 211068847. Substitute compatibility should be verified for your specific system.
What is the NSN for DF2011-280?
DF2011-280 is cataloged in the U.S. Government catalog under NSN 5305-01-487-5382. This indicates validated use in U.S. government and defense supply chains.
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