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Technical Data Sheet
PartsTable / COMPONENT / 202585
202585 ✓ 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,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.033 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.312 INCHES MAXIMUM IN, screw_material: STEEL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-208-4619, 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
202585
NSN: 5305-00-208-4619
FSC: 5305
CAGE: 70143 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.033 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.312 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length0.312 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.164 INCHES IN
screw_surface_treatmentCADMIUM
thread_quantity_per_inch32
NSN5305-00-208-4619
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 202585 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD DIAMETER: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
SCREW MATERIAL: STEEL
•
HEAD HEIGHT: 0.033 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
THREAD QUANTITY PER INCH: 32
•
HEAD STYLE: FILLISTER
•
THREAD LENGTH: 0.312 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
HEAD DIAMETER0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
SCREW MATERIALSTEEL
HEAD HEIGHT0.033 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM
THREAD QUANTITY PER INCH32
HEAD STYLEFILLISTER
THREAD LENGTH0.312 INCHES MAXIMUM IN
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
86623BSInterchangeable
interchangeable cross-reference
interchangeable
B3434-2Interchangeable
interchangeable cross-reference
interchangeable
233-984Interchangeable
interchangeable cross-reference
interchangeable
14614Interchangeable
interchangeable cross-reference
interchangeable
13390Interchangeable
interchangeable cross-reference
interchangeable
C54996Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 202585?
202585 is a VALVE,SAFETY RELIEF.
What parts can replace 202585?
There are 19 known substitutes for 202585: 86623BS, B3434-2, 233-984 and 16 more. Substitute compatibility should be verified for your specific system.
Is 202585 still available?
202585 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