PartsTable
Technical Data Sheet
Download PDF

5204757 — DETECTOR ASSEMBLY,P

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5204757: DETECTOR ASSEMBLY,P.

The DETECTOR ASSEMBLY,P is a the manufacturer industrial component. Key specifications include diameter: 0.689 INCHES NOMINAL IN, material: GLASS OPTICAL, abbe_constant: 36.600 AND 59.900, axial_thickness: 0.335 INCHES NOMINAL AND 0.430 INCHES NOMINAL IN, refraction_index: 1.5411 NOMINAL AND 1.6170 NOMINAL, back_focal_length: 0.905 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-258-2009, 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
5204757
NSN: 5340-00-258-2009
NIINs: 002582009, 005204757, 012551687
FSC: 5340 — Hardware, Commercial
CAGE: 77237 — DANA OFF HIGHWAY PRODUCTS, LLC (USA)
SPECIFICATIONS
diameter0.689 INCHES NOMINAL IN
materialGLASS OPTICAL
abbe_constant36.600 AND 59.900
axial_thickness0.335 INCHES NOMINAL AND 0.430 INCHES NOMINAL IN
refraction_index1.5411 NOMINAL AND 1.6170 NOMINAL
back_focal_length0.905 INCHES IN
compound_lens_styleDOUBLET
individual_lens_styleDOUBLE CONVEX AND MENISCUS DIVERGING
equivalent_focal_length1.141 INCHES IN
element_left_surface_radius-0.629 INCHES AND 0.473 INCHES IN
compound_lens_edge_thickness0.211 INCHES NOMINAL IN
element_right_surface_radius-0.473 INCHES AND 3.351 INCHES IN
NSN5340-00-258-2009
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5204757 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SEALING METHOD: PACKING
•
OPENING INSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 2.125 INCHES NOMINAL IN
•
BODY HEIGHT: 1.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE, EXPANDABLE
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
BASE OUTSIDE DIAMETER: 2.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.000 INCHES NOMINAL IN
SEALING METHODPACKING
OPENING INSIDE DIAMETER0.312 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.125 INCHES NOMINAL IN
BODY HEIGHT1.750 INCHES NOMINAL IN
STYLE DESIGNATORTHRU-HOLE, EXPANDABLE
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
BASE OUTSIDE DIAMETER2.125 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC BODY
SUBSTITUTES & CROSS-REFERENCES 1
SPF1400Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 5204757?
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 5204757?
5204757 is a DETECTOR ASSEMBLY,P.
What parts can replace 5204757?
There is 1 known substitute for 5204757: SPF1400. Substitute compatibility should be verified for your specific system.
What is the NSN for 5204757?
5204757 is cataloged in the U.S. Government catalog under NSN 5340-00-258-2009. 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 — 5204757

✓ 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.