PartsTable
Technical Data Sheet
Download PDF

398925 — STEM,FLUID VALVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

398925: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include valve_size_for_which_designed: 3.000 INCHES IN, valve_type_for_which_designed: BUTTERFLY. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-995-0400, 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
398925
NSN: 5315-00-995-0400
NIINs: 009950400, 013931029
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
valve_size_for_which_designed3.000 INCHES IN
valve_type_for_which_designedBUTTERFLY
NSN5315-00-995-0400
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 398925 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FIRST END STYLE: RADIUS
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
PIN OVERALL DIAMETER: 0.1240 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 4.965 INCHES MINIMUM AND 4.995 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 321 OVERALL
•
FIRST END CORNER RADIUS: 0.030 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FIRST END STYLERADIUS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL DIAMETER0.1240 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
PIN OVERALL LENGTH4.965 INCHES MINIMUM AND 4.995 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 321 OVERALL
FIRST END CORNER RADIUS0.030 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 398925?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 398925?
398925 is a STEM,FLUID VALVE.
What is the NSN for 398925?
398925 is cataloged in the U.S. Government catalog under NSN 5315-00-995-0400. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 398925

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
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.