PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7648779P003Delay Line

Lockheed Martin Corporation Div Rms · NSN 5999-00-487-3267 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-487-3267 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-487-3267. Primary manufacturer part number: 7648779P003.
Features
  • Delay Line — FSC 5999
  • Body Length: 5.500 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 2017 CASE
  • Signal Delay Method: LUMPED CONSTANT
  • Thread Size and Series/type Designator: 0.164-32 UNIFIED NATIONAL COARSE (UNC)
  • Material Document and Classification: QQ-A-225/5, ALLOY 2017, T4 FED SPEC SINGLE MATERIAL RESPONSE CASE
  • Surface Treatment Document and Classification: MIL-A-8625, TYPE 3, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE CASE
  • Surface Treatment: ANODIZE CASE
Applications
  • Applications requiring Aluminum Alloy 2017 Case construction
General Description

The Delay Line, cataloged under National Stock Number 5999-00-487-3267, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-487-3267
Primary Part Number7648779P003
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Body Length5.500 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 2017 CASE
Signal Delay MethodLUMPED CONSTANT
Thread Size and Series/type Designator0.164-32 UNIFIED NATIONAL COARSE (UNC)
Material Document and ClassificationQQ-A-225/5, ALLOY 2017, T4 FED SPEC SINGLE MATERIAL RESPONSE CASE
Surface Treatment Document and ClassificationMIL-A-8625, TYPE 3, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE CASE
Surface TreatmentANODIZE CASE
Mounting Provision Arrangement StyleFOUR POSITION OFF-SET
Mounting FacilityTHREADED INSERT
Section Delay Time1.350 MILLISECONDS NOMINAL SINGLE SECTION MS
Delay Time Variation MethodVARIABLE
Terminal Type and Quantity5 TURRET
Body Depth0.781 INCHES NOMINAL IN
Pulse Rise Time Rating40.0 NANOSECONDS NS
Adjustment Device Drive TypeSLOTTED SCREW
Thread Pitch Diameters+0.1440 TO 0.1480 INCHES IN
Shortest Horizontal Distance Between Mounting Centers1.100 INCHES NOMINAL IN
Body Width4.100 INCHES NOMINAL IN
Mounting Facility Quantity4
Operating Temp Range+15.1 TO 45.0 CELSIUS DEGC
Voltage Rating60.000 MILLIVOLTS NOMINAL
Intermediate Horizontal Distance Between Mounting Centers4.500 INCHES MAXIMUM IN
Frequency Rating648.000 KILOHERTZ NOMINAL
Thread Class2B
Individual Section Quantity1
Longest Vertical Distance Between Mounting Centers3.000 INCHES NOMINAL IN
Longest Horizontal Distance Between Mounting Centers4.500 INCHES MAXIMUM IN
Adjustment Device Quantity1
Body StyleRECTANGULAR
Body Length5.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight1.2500 lbs
Cube0.1110 cu ft
Verified Substitutes 3
5962-01-178-697842723 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5307-01-269-8224 INTERCHANGEABLE
Stud,plain
5310-01-727-804142723 INTERCHANGEABLE
Washer,convex
Te-Co Manufacturing Llc Dba Te-Co Manufacturing Llc
Cross-Reference Index
Part NumberManufacturer
4272-3 Micro Networks Corporation (USA)
7648779P003 PRIMARY Lockheed Martin Corporation Div Rms (USA)
0153ACM-1 American Electric Fusion Corp (USA)
Related Parts
5962-01-178-6978INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42723
5307-01-269-8224INTERCHANGEABLE
STUD,PLAIN
5310-01-727-8041INTERCHANGEABLE
WASHER,CONVEX
42723

Frequently Asked Questions

What is NSN 5999-00-487-3267?

NSN 5999-00-487-3267 is a Delay Line, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-487-3267?

NSN 5999-00-487-3267 has 3 cross-referenced part numbers: 4272-3 (Micro Networks Corporation), 7648779P003 (Lockheed Martin Corporation Div Rms), 0153ACM-1 (American Electric Fusion Corp).

What NSN replaces 5999-00-487-3267?

There are 3 known substitutes for 5999-00-487-3267: 5962-01-178-6978, 5307-01-269-8224, 5310-01-727-8041. Verify interchangeability with system specifications before substitution.

What are the specifications of 7648779P003?

Key specifications for 7648779P003: Body Length: 5.500 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 2017 CASE; Signal Delay Method: LUMPED CONSTANT; Thread Size and Series/type Designator: 0.164-32 UNIFIED NATIONAL COARSE (UNC). 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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