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B33266-1 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

B33266-1: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: TEE NO. 5, head_length: 3.500 INCHES NOMINAL IN, first_end_style: CHAMFERED, first_step_length: 0.750 INCHES NOMINAL IN, under_head_length: 4.750 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5315-00-159-3065, 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
B33266-1
NSN: 5315-00-159-3065
NIINs: 001593065, 013572442
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 13841 — TIFFIN PARTS, L.L.C. DIV SUBSIDIARY OF PETTIBONE CORP. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleTEE NO. 5
head_length3.500 INCHES NOMINAL IN
first_end_styleCHAMFERED
first_step_length0.750 INCHES NOMINAL IN
under_head_length4.750 INCHES NOMINAL IN
second_step_length4.000 INCHES NOMINAL IN
first_step_diameter1.500 INCHES NOMINAL IN
flow_control_deviceBALL
second_step_diameter1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
first_end_taper_angle10.0 DEGREES NOMINAL
first_end_taper_length0.312 INCHES NOMINAL IN
NSN5315-00-159-3065
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B33266-1 · 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 TAPER LENGTH: 0.312 INCHES NOMINAL IN
•
FIRST STEP DIAMETER: 1.500 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 4.750 INCHES NOMINAL IN
•
TEE BOLT CYLINDRICAL HEAD DIAMETER: 0.500 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
SECOND STEP LENGTH: 4.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDER
•
FIRST END TAPER ANGLE: 10.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.312 INCHES NOMINAL IN
FIRST STEP DIAMETER1.500 INCHES NOMINAL IN
UNDER HEAD LENGTH4.750 INCHES NOMINAL IN
TEE BOLT CYLINDRICAL HEAD DIAMETER0.500 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
SECOND STEP LENGTH4.000 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
FIRST END TAPER ANGLE10.0 DEGREES NOMINAL
HEAD STYLETEE NO. 5
SECOND STEP DIAMETER1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
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 B33266-1?
B33266-1 is a VALVE,SAFETY RELIEF.
What is the NSN for B33266-1?
B33266-1 is cataloged in the U.S. Government catalog under NSN 5315-00-159-3065. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.