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Technical Data Sheet
PartsTable / COMPONENT / 211-504
211-504 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The VALVE,VENT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1117 OVERALL, head_style: HEXAGON, head_height: 0.375 INCHES NOMINAL IN, point_style: DOG, point_length: 0.250 INCHES NOMINAL IN, thread_class: 2A A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-408-0129, 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
211-504
NSN: 5305-00-408-0129
FSC: 5305
CAGE: 59873 — SPACELABS-HILLSBORO OPERATIONS SQUIBB VITATEK INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1117 OVERALL
head_styleHEXAGON
head_height0.375 INCHES NOMINAL IN
point_styleDOG
point_length0.250 INCHES NOMINAL IN
thread_class2A A
thread_length1.250 INCHES MAXIMUM IN
point_diameter0.297 INCHES MINIMUM AND 0.307 INCHES MAXIMUM IN
fastener_length2.000 INCHES NOMINAL IN
special_featuresUNTHREADED PORTION RELIEVED
thread_directionRIGHT-HAND
width_between_flats0.750 INCHES NOMINAL IN
NSN5305-00-408-0129
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 211-504 · 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: 0.071 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.250 INCHES NOMINAL IN
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
HEAD DIAMETER: 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD STYLE: BINDING
•
THREAD CLASS: 2A A
•
SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.071 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
FASTENER LENGTH0.250 INCHES NOMINAL IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
HEAD DIAMETER0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
HEAD STYLEBINDING
THREAD CLASS2A A
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD LENGTH0.250 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
9993-060Interchangeable
interchangeable cross-reference
interchangeable
060Interchangeable
interchangeable cross-reference
interchangeable
MILR15109AInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-15109Interchangeable
interchangeable cross-reference
interchangeable
1831-52Interchangeable
interchangeable cross-reference
interchangeable
211504Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 211-504?
211-504 is a VALVE,VENT.
What parts can replace 211-504?
There are 19 known substitutes for 211-504: 9993-060, 060, MILR15109A and 16 more. Substitute compatibility should be verified for your specific system.
Is 211-504 still available?
211-504 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026