PartsTable
Technical Data Sheet
Q1-25 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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 CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include shape: STRAIGHT, length: 2.000 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, material: TUNGSTEN CARBIDE, usage_design: EXTERNAL, mounting_shank: INCLUDED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-205-6552, 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
MRO MRO_GENERAL Q1-25
NSN: 5325-00-205-6552
FSC: 5325
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
shapeSTRAIGHT
length2.000 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialTUNGSTEN CARBIDE
ring_styleE
usage_designEXTERNAL
mounting_shankINCLUDED
inside_diameter0.204 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
major_thickness0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
overall_diameter0.125 INCHES NOMINAL IN
special_featuresSTD RH SPIRAL FLUTING W/O CHIP BREAKER FEATURE
style_designatorBALL SHAPE
NSN5325-00-205-6552
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: Q1-25 · 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
INSIDE DIAMETER: 0.204 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
CASEHARDENING INDICATOR: NOT CASEHARDENED
SURFACE TREATMENT: PASSIVATE
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 5 CLASS
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
MATERIAL: STEEL COMP 632
MATERIAL HARDNESS RATING: 63.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
MAJOR THICKNESS: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER0.204 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
SURFACE TREATMENTPASSIVATE
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 5 CLASS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 632
MATERIAL HARDNESS RATING63.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
MAJOR THICKNESS0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
RING STYLEE
USAGE DESIGNEXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
2884Interchangeable
interchangeable cross-reference
interchangeable
177588Interchangeable
interchangeable cross-reference
interchangeable
6177Interchangeable
interchangeable cross-reference
interchangeable
1204087A001-000Interchangeable
interchangeable cross-reference
interchangeable
1204-087-A001Interchangeable
interchangeable cross-reference
interchangeable
10957-.246THKInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Q1-25?
Q1-25 is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace Q1-25?
There are 24 known substitutes for Q1-25: 2884, 177588, 6177 and 21 more. Substitute compatibility should be verified for your specific system.
Is Q1-25 still available?
Q1-25 is currently cancelled.
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