PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RC688Gridmember,coupling

Continental Emsco Co Skagit Products Div · NSN 3010-00-267-4955 · FSC 3010 · No Item Name Available
Verified by PartsTable
NSN 3010-00-267-4955 — this item is cataloged by the U.S. Government under National Stock Number 3010-00-267-4955. Primary manufacturer part number: RC688.
Features
  • Gridmember,coupling — FSC 3010
  • Rung Thickness: 0.094 INCHES NOMINAL IN
  • Outside Diameter: 5.500 INCHES NOMINAL IN
  • Section Quantity: 2
  • Material: STEEL
  • Rung Quantity: 40
  • Rung Width: 0.500 INCHES NOMINAL IN
  • 32 verified cross-references
Applications
  • Applications requiring Steel construction
General Description

The Gridmember,coupling, cataloged under National Stock Number 3010-00-267-4955, is classified within Federal Supply Class 3010 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Continental Emsco Co Skagit Products Div. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 32 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3010-00-267-4955
Primary Part NumberRC688
Item NameGridmember,coupling
FSC / FSG3010 / 30 — No Item Name Available
ManufacturerContinental Emsco Co Skagit Products Div
StatusACTIVE
Rung Thickness0.094 INCHES NOMINAL IN
Outside Diameter5.500 INCHES NOMINAL IN
Section Quantity2
MaterialSTEEL
Rung Quantity40
Rung Width0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-108-9348136539-15 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5120-00-277-1802 INTERCHANGEABLE
Nutdriver
4730-00-277-8280SAE J512 5-5 060201BA INTERCHANGEABLE
Elbow,tube
Sae International Dba Sae International
5330-00-450-7396331921 INTERCHANGEABLE
Seal,plain Encased
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
5999-00-615-64598899427 INTERCHANGEABLE
Retainer,electrical Shield
Us Army Aviation and Missile Command
5120-00-877-4350S9 INTERCHANGEABLE
Die,crimping Tool
Burndy Llc
6540-01-199-8345 INTERCHANGEABLE
Pattern,ophthalmic Lens Cutting
5950-01-235-9530 INTERCHANGEABLE
Transformer,power
5330-01-281-3790S9 INTERCHANGEABLE
Packing,preformed
Pelican Products, Inc. Dba Pelican Products Inc
5306-01-487-465028700-01 INTERCHANGEABLE
Bolt,machine
Hutchens Industries Inc
Cross-Reference Index
Part NumberManufacturer
RC688 PRIMARY Continental Emsco Co Skagit Products Div (USA)
E1705-52 Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
E1705-52 Rexnord Industries Llc (USA)
14655-431 PRIMARY Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA)
57528PC403 Rexnord Industries Llc (USA)
BS4-1432PC32 Rexnord Industries Llc (USA)
HG17706D9C Rexnord Industries Llc (USA)
75900 Rexnord Industries Llc (USA)
14561P389 PRIMARY Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA)
BS4-1432PC32 Circor Naval Solutions Llc Dba Warren Pumps (USA)
75900 Bae Systems Land & Armaments L.p. (USA)
14561P389 Rexnord Industries Llc (USA)
E1807-52 Rexnord Industries Llc (USA)
BS5-1435PC32 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS5-1435PC32 Rexnord Industries Llc (USA)
53517-0071 PRIMARY Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA)
S9 Rexnord Industries Llc (USA)
S9 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
NC9-3 Tuthill Corporation Dba Tuthill Vac & Blower Systems Div Tuthill Vacuum Systems (USA)
NC9-3 Rexnord Industries Llc (USA)
Related Parts
3110-00-108-9348INTERCHANGEABLE
BEARING,BALL,ANNULAR
136539-15
5120-00-277-1802INTERCHANGEABLE
NUTDRIVER
4730-00-277-8280INTERCHANGEABLE
ELBOW,TUBE
SAE J512 5-5 060201BA
5330-00-450-7396INTERCHANGEABLE
SEAL,PLAIN ENCASED
331921
5999-00-615-6459INTERCHANGEABLE
RETAINER,ELECTRICAL SHIELD
8899427
5120-00-877-4350INTERCHANGEABLE
DIE,CRIMPING TOOL
S9
6540-01-199-8345INTERCHANGEABLE
PATTERN,OPHTHALMIC LENS CUTTING
5950-01-235-9530INTERCHANGEABLE
TRANSFORMER,POWER
5330-01-281-3790INTERCHANGEABLE
PACKING,PREFORMED
S9
5306-01-487-4650INTERCHANGEABLE
BOLT,MACHINE
28700-01
6520-01-531-0684INTERCHANGEABLE
SCISSORS,ORAL SURGICAL
S9

Frequently Asked Questions

What is NSN 3010-00-267-4955?

NSN 3010-00-267-4955 is a Gridmember,coupling, manufactured by Continental Emsco Co Skagit Products Div, classified under FSC 3010 (No Item Name Available). Status: active.

What are the part numbers for NSN 3010-00-267-4955?

NSN 3010-00-267-4955 has 32 cross-referenced part numbers: RC688 (Continental Emsco Co Skagit Products Div), E1705-52 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer), E1705-52 (Rexnord Industries Llc), 14655-431 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine), 57528PC403 (Rexnord Industries Llc) and 27 more.

What NSN replaces 3010-00-267-4955?

There are 11 known substitutes for 3010-00-267-4955: 3110-00-108-9348, 5120-00-277-1802, 4730-00-277-8280 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RC688?

Key specifications for RC688: Special Features: MATL HARDNESS RATING, ROCKWELL C SCALE MIN. 40.0; MATL, STEEL SAE 6150; Rung Thickness: 0.094 INCHES NOMINAL IN; Overall Width: 2.750 INCHES NOMINAL IN; Outside Diameter: 5.500 INCHES NOMINAL IN. 8 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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