PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 51-25N
51-25N ✓ 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 RING,RETAINING is a the manufacturer industrial component. Key specifications include material: PLASTIC, overall_width: 0.680 INCHES NOMINAL IN, current_rating: 50.000 MILLIAMPERES, overall_height: 1.260 INCHES NOMINAL IN, overall_length: 1.260 INCHES NOMINAL IN, special_features: SHOCK SENSOR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-803-7307, 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
51-25N
NSN: 5325-00-803-7307
FSC: 5325
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialPLASTIC
overall_width0.680 INCHES NOMINAL IN
current_rating50.000 MILLIAMPERES
overall_height1.260 INCHES NOMINAL IN
overall_length1.260 INCHES NOMINAL IN
special_featuresSHOCK SENSOR
surface_treatmentPAINT
voltage_in_volts_and_current_type18.0 DC
NSN5325-00-803-7307
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 51-25N · 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
•
USAGE DESIGN: EXTERNAL
•
RING STYLE: EXTERNAL
•
MATERIAL: STEEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED-STD-66 NO. 1066 THRU 1090 FED STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
INSIDE DIAMETER: 0.225 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 69.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
USAGE DESIGNEXTERNAL
RING STYLEEXTERNAL
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD-66 NO. 1066 THRU 1090 FED STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CASEHARDENING INDICATORNOT CASEHARDENED
INSIDE DIAMETER0.225 INCHES NOMINAL IN
MATERIAL HARDNESS RATING69.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
MAJOR THICKNESS0.025 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
10494Interchangeable
interchangeable cross-reference
interchangeable
NFES 1801Interchangeable
interchangeable cross-reference
interchangeable
A-A-52088Interchangeable
interchangeable cross-reference
interchangeable
T-R-571Interchangeable
interchangeable cross-reference
interchangeable
A-A-52088 CL1Interchangeable
interchangeable cross-reference
interchangeable
AA520882CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 51-25N?
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 51-25N?
51-25N is a RING,RETAINING.
What parts can replace 51-25N?
There are 20 known substitutes for 51-25N: 10494, NFES 1801, A-A-52088 and 17 more. Substitute compatibility should be verified for your specific system.
Is 51-25N still available?
51-25N is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 51-25N

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026