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20690 — VALVE,LINEAR,DIRECTIONAL CONTROL

✓ Government record, cited
Exost · BOLT SCREW
PRODUCT OVERVIEW

20690: VALVE,LINEAR,DIRECTIONAL CONTROL.

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include material: STEEL OVERALL, body_width: 3.125 INCHES NOMINAL IN, head_style: HEADLESS (SETSCREW), point_type: CONVENTIONAL, body_height: 4.000 INCHES NOMINAL IN, body_length: 3.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-033-2977, 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
20690
NSN: 5305-00-033-2977
NIINs: 000332977, 001778634, 001899267, 006480260, 014436719, 014635943, 015983056
FSC: 5305 — Screws
CAGE: 58880 — MEGGITT (NEW HAMPSHIRE), INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width3.125 INCHES NOMINAL IN
head_styleHEADLESS (SETSCREW)
point_typeCONVENTIONAL
body_height4.000 INCHES NOMINAL IN
body_length3.375 INCHES NOMINAL IN
point_angle118.0 DEGREES NOMINAL
point_styleOVAL
shank_styleSTRAIGHT ROUND
flute_length2.000 INCHES NOMINAL IN
thread_class2A A
thread_length0.156 INCHES MINIMUM IN
NSN5305-00-033-2977
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 20690 · Exost ⚠ 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
•
FASTENER LENGTH: 0.156 INCHES MINIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.156 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.125 INCHES IN
•
HEAD STYLE: HEADLESS (SETSCREW)
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: OVAL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.156 INCHES MINIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.156 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.125 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
THREAD DIRECTIONRIGHT-HAND
POINT STYLEOVAL
SURFACE TREATMENTCADMIUM OVERALL
INTERNAL DRIVE STYLESLOT
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20690?
20690 is a VALVE,LINEAR,DIRECTIONAL CONTROL manufactured by Exost.
What is the NSN for 20690?
20690 is cataloged in the U.S. Government catalog under NSN 5305-00-033-2977. This indicates validated use in U.S. government and defense supply chains.
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